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Datolite

A valid IMA mineral species - grandfathered
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00129420017271922572278.jpg
Datolite, etc.

Prospect Park Quarry, Prospect Park, Passaic County, New Jersey, USA
06458790017271922616208.jpg
Datolite, etc.

Bor Pit, Dal'negorsk B deposit, Dalnegorsk, Dalnegorsk Urban District, Primorsky Krai, Russia
01509520017339890466306.jpg
Datolite, etc.

Roncari Quarry, East Granby, Hartford County, Connecticut, USA
09709950017271922643615.jpg
Datolite

Bor Pit, Dal'negorsk B deposit, Dalnegorsk, Dalnegorsk Urban District, Primorsky Krai, Russia
00129420017271922572278.jpg
Datolite, etc.

Prospect Park Quarry, Prospect Park, Passaic County, New Jersey, USA
06458790017271922616208.jpg
Datolite, etc.

Bor Pit, Dal'negorsk B deposit, Dalnegorsk, Dalnegorsk Urban District, Primorsky Krai, Russia
02090850017272023869255.jpg
Datolite, etc.

Roncari Quarry, East Granby, Hartford County, Connecticut, USA
09709950017271922643615.jpg
Datolite

Bor Pit, Dal'negorsk B deposit, Dalnegorsk, Dalnegorsk Urban District, Primorsky Krai, Russia
01329840017271922717944.jpg
Datolite, etc.

Prospect Park Quarry, Prospect Park, Passaic County, New Jersey, USA
01231770017361048914676.jpg
Datolite, etc.

Bor Pit, Dal'negorsk B deposit, Dalnegorsk, Dalnegorsk Urban District, Primorsky Krai, Russia
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About DatoliteHide

Formula:
CaB(SiO4)(OH)
Colour:
White, greyish, pale green, red, yellow, pink, etc.
Lustre:
Vitreous, Resinous
Hardness:
5 - 5½
Specific Gravity:
2.96 - 3.00
Crystal System:
Monoclinic
Name:
Named in 1806 by the Danish-Norwegian geologist, Jens Esmark (1762-1839) from the Greek δατΡῖσθαι for "to divide", in reference to the granular texture of massive varieties. In a letter (17 January 1806) to professor Morten Thrane BrΓΌnnich, Copenhagen, Denmark Esmark first presented the mineral including an uncomplete chemical analysis. The letter was read at a meeting in the Naturhistorie-Selskabet [Natural History Society]. It was however Klaproth (1806) that first published a description of the new mineral in the Journal de Chemie. Later, Hausmann (1810) gave a more thorough description both of the physical and crystallographic data.
Datolite is the second described mineral in the gadolinite supergroup.

The structure of datolite consists of sheets of four- and eight-membered rings of corner-sharing, alternating (HBO4) and (SiO4) tetrahedra, classifying it as a phyllo-borosilicate. The net formula of the anion is (HBSiO5), with (HBSiO5) as the repeating unit (Foit et al., 1973). Instead of (HBSiO5), the formula may also be written as (BSiO4OH) or (BSiO4(OH)), indicating that the proton is bonded to one of the oxygen atoms. The mineral does not contain any isolated hydroxide ions, though.

Compare also the closely related shimazakiite.

John Sinkankas's observed that datolite characteristically tends to occur in "glassy, faintly greenish, wedge-shaped crystals with odd-shaped faces seemingly placed at random" (Mineralogy for Amateurs, p. 547).

Commonly formed by low to moderate temperature hydrothermal, metamorphic or volcanic processes, especially skarns, also amygdulal basalts and some low-grade metamorphic rocks, e.g., Anchi-Zeolite).

Visit gemdat.org for gemological information about Datolite.



Unique IdentifiersHide

Mindat ID:
1340
Long-form identifier:
mindat:1:1:1340:2

IMA Classification of DatoliteHide

IMA status:
Approved, 'Grandfathered' (first described prior to 1959)
First published:
1806

Classification of DatoliteHide

Strunz-mindat (2025):
9.AJ.20

9 : SILICATES (Germanates)
A : Nesosilicates
J : Nesosilicates with BO3 triangles and/or B[4], Be[4] tetrahedra, cornersharing with SiO4
Dana 8th ed.:
54.2.1a.1

54 : NESOSILICATES Borosilicates and Some Beryllosilicates
2 : Borosilicates and Some Beryllosilicates with B in [4] coordination
Hey's CIM Ref.:
17.5.10

17 : Silicates Containing other Anions
5 : Borosilicates

Mineral SymbolsHide

As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.

Please only use the official IMA–CNMNC symbol. Older variants are listed for historical use only.

SymbolSourceReference
DatIMA–CNMNCWarr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43
DatWhitney & Evans (2010)Whitney, D.L. and Evans, B.W. (2010) Abbreviations for names of rock-forming minerals. American Mineralogist, 95, 185–187 doi:10.2138/am.2010.3371

Pronunciation of DatoliteHide

Pronunciation:
PlayRecorded byCountry
Jolyon RalphUnited Kingdom

Physical Properties of DatoliteHide

Lustre:
Vitreous, Resinous
Transparency:
Transparent, Translucent, Opaque
Colour:
White, greyish, pale green, red, yellow, pink, etc.
Comment:
Commonly with a greenish tinge
Streak:
White
Hardness:
5 - 5½ on Mohs scale
Tenacity:
Brittle
Fracture:
Irregular/Uneven, Conchoidal
Density:
2.96 - 3.00 g/cm3 (Measured)    3.00 g/cm3 (Calculated)

Optical Data of DatoliteHide

Type:
Biaxial (-)
RI values:
nα = 1.626 nβ = 1.653 - 1.654 nγ = 1.670
2V:
Measured: 74° to 74°, Calculated: 72° to 74°
Max. Birefringence:
δ = 0.044
Based on recorded range of RI values above.

Interference Colours:
The colours simulate birefringence patterns seen in thin section under crossed polars. They do not take into account mineral colouration or opacity.

Michel-Levy Bar The default colours simulate the birefringence range for a 30 Β΅m thin-section thickness. Adjust the slider to simulate a different thickness.

Grain Simulation You can rotate the grain simulation to show how this range might look as you rotated a sample under crossed polars.

Surface Relief:
Moderate
Dispersion:
weak r > v
Optical Extinction:
Y = b; Z ∧ c = -1° to -4°.

Chemistry of DatoliteHide

Mindat Formula:
CaB(SiO4)(OH)
Element Weights:
Element% weight
O50.005 %
Ca25.052 %
Si17.556 %
B6.758 %
H0.630 %

Calculated from ideal end-member formula.
Elements listed:
B, Ca, H, O, Si - search for minerals with similar chemistry
Common Impurities:
Mn,Mg,Al,Fe

Crystallography of DatoliteHide

Crystal System:
Monoclinic
Class (H-M):
2/m - Prismatic
Space Group:
P21/b
Cell Parameters:
a = 9.62 Å, b = 7.6 Å, c = 4.84 Å
β = 90.15°
Ratio:
a:b:c = 1.266 : 1 : 0.637
Unit Cell V:
353.86 Γ…Β³ (Calculated from Unit Cell)
Z:
4
Morphology:
Short prismatic, lenticular, botryoidal, granular to compact, cryptocrystalline.

Crystal StructureHide

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IDSpeciesReferenceLinkYearLocalityPressure (GPa)Temp (K)
0000387DatoliteFoit F F, Phillips M W, Gibbs G V (1973) A refinement of the crystal structure of datolite, CaBSiO4(OH) American Mineralogist 58 909-91419730293
0003540DatolitePerchiazzi N, Gualtieri A F, Merlino S, Kampf A R (2004) The atomic structure of bakerite and its relationship to datolite American Mineralogist 89 767-77620040293
0017699DatoliteRinaldi R, Gatta G D, Angel R J (2010) Crystal chemistry and low-temperature behavior of datolite: a single-crystal X-ray diffraction study American Mineralogist 95 1413-14212010Valmozzola, Parma, Italy0293
0017700DatoliteRinaldi R, Gatta G D, Angel R J (2010) Crystal chemistry and low-temperature behavior of datolite: a single-crystal X-ray diffraction study American Mineralogist 95 1413-14212010Boccassuolo, Modena, Italy0293
0017701DatoliteRinaldi R, Gatta G D, Angel R J (2010) Crystal chemistry and low-temperature behavior of datolite: a single-crystal X-ray diffraction study American Mineralogist 95 1413-14212010Campotrera, Reggio Emilia, Italy0293
0017702DatoliteRinaldi R, Gatta G D, Angel R J (2010) Crystal chemistry and low-temperature behavior of datolite: a single-crystal X-ray diffraction study American Mineralogist 95 1413-14212010Sasso Puzzino, Modena, Italy0293
0017703DatoliteRinaldi R, Gatta G D, Angel R J (2010) Crystal chemistry and low-temperature behavior of datolite: a single-crystal X-ray diffraction study American Mineralogist 95 1413-14212010Cinghi, Boccassuolo-Modena, Italy0293
0017704DatoliteRinaldi R, Gatta G D, Angel R J (2010) Crystal chemistry and low-temperature behavior of datolite: a single-crystal X-ray diffraction study American Mineralogist 95 1413-14212010Arendal, Norway0293
0017705DatoliteRinaldi R, Gatta G D, Angel R J (2010) Crystal chemistry and low-temperature behavior of datolite: a single-crystal X-ray diffraction study American Mineralogist 95 1413-14212010Valmozzola, Parma, Italy0280
0017706DatoliteRinaldi R, Gatta G D, Angel R J (2010) Crystal chemistry and low-temperature behavior of datolite: a single-crystal X-ray diffraction study American Mineralogist 95 1413-14212010Valmozzola, Parma, Italy0250
0017707DatoliteRinaldi R, Gatta G D, Angel R J (2010) Crystal chemistry and low-temperature behavior of datolite: a single-crystal X-ray diffraction study American Mineralogist 95 1413-14212010Valmozzola, Parma, Italy0220
0017708DatoliteRinaldi R, Gatta G D, Angel R J (2010) Crystal chemistry and low-temperature behavior of datolite: a single-crystal X-ray diffraction study American Mineralogist 95 1413-14212010Valmozzola, Parma, Italy0190
0017709DatoliteRinaldi R, Gatta G D, Angel R J (2010) Crystal chemistry and low-temperature behavior of datolite: a single-crystal X-ray diffraction study American Mineralogist 95 1413-14212010Valmozzola, Parma, Italy0160
0017710DatoliteRinaldi R, Gatta G D, Angel R J (2010) Crystal chemistry and low-temperature behavior of datolite: a single-crystal X-ray diffraction study American Mineralogist 95 1413-14212010Valmozzola, Parma, Italy0130
0017711DatoliteRinaldi R, Gatta G D, Angel R J (2010) Crystal chemistry and low-temperature behavior of datolite: a single-crystal X-ray diffraction study American Mineralogist 95 1413-14212010Valmozzola, Parma, Italy0100
0009947DatoliteIvanov Y V, Belokoneva E L (2007) Multipole refinement and electron density analysis in natural borosilicate datolite using X-ray diffraction data Acta Crystallographica B63 49-552007datolite-hedenbergite scarn deposit, Tetyche, Sikhote-Alin mountains0293
0015536DatolitePavlov P V, Belov N V (1959) The structures of herderite, datolite and gadolinite determined by direct methods Soviet Physics Crystallography 4 300-3141959origin of crystal not given0293
CIF Raw Data - click here to close

X-Ray Powder DiffractionHide

Loading XRD data...
Data Set:
Data courtesy of RRUFF project at University of Arizona, used with permission.
Powder Diffraction Data:
d-spacingIntensity
3.11 Γ…(100)
2.855 Γ…(65)
2.189 Γ…(60)
3.76 Γ…(45)
1.875 Γ…(40)
1.644 Γ…(40)
2.986 Γ…(35)
Comments:
St. Andreasberg, Germany, ICDD 11-70.

Geological EnvironmentHide

Paragenetic Mode(s):
Paragenetic ModeEarliest Age (Ga)
Near-surface Processes
23 : Subaerial aqueous alteration by non-redox-sensitive fluids (see also #47)
High-𝑇 alteration and/or metamorphism
31 : Thermally altered carbonate, phosphate, and iron formations
Stage 5: Initiation of plate tectonics<3.5-2.5
40 : Regional metamorphism (greenschist, amphibolite, granulite facies)
Geological Setting:
Secondary mineral in mafic igneous rocks. Geodes in tuff, limestone skarns, serpentinites, schists, ore veins.

Type Occurrence of DatoliteHide

Type Locality:
β“˜ NΓΈdebro Mine (NΓΈddebro), Øyestad, Arendal, Agder, Norway
Place of Conservation of Type Material:
Museum fΓΌr Naturkunde, Humboldt-UniversitΓ€t-Berlin, Germany, number 2007-02502.
In the official IMA type material list, there is a question mark associated with this entry.

Synonyms of DatoliteHide

Other Language Names for DatoliteHide

Dutch:Datoliet
Italian:Datolite
Lithuanian:Datolitas
Simplified Chinese:η‘…η‘Όι’™ηŸ³
Spanish:Datolita
Swedish:Datolit
Traditional Chinese:矽瑼鈣石

Varieties of DatoliteHide

BakeriteA microcrystalline, boron-rich variety of datolite. Occurs in various genetic environments among them diabase spilites.
BotryoliteA variety of datolite found in a botryoidal form.

Relationship of Datolite to other SpeciesHide

Member of:
Datolite Subgroup > Gadolinite Group > Gadolinite Supergroup
Other Members of Datolite Subgroup:
HomiliteCa2(Fe2+,Mg)B2Si2O10Mon. 2/m : P21/b

Common AssociatesHide

Associated Minerals Based on Photo Data:
300 photos of Datolite associated with CalciteCaCO3
274 photos of Datolite associated with QuartzSiO2
246 photos of Datolite associated with PrehniteCa2Al2Si3O10(OH)2
109 photos of Datolite associated with Native CopperCu
76 photos of Datolite associated with Apophyllite GroupAB4[Si8O22]X Β· 8H2O
76 photos of Datolite associated with ChalcopyriteCuFeS2
68 photos of Datolite associated with Fluorapophyllite-(K)KCa4(Si8O20)(F,OH) Β· 8H2O
60 photos of Datolite associated with PyriteFeS2
59 photos of Datolite associated with HematiteFe2O3
52 photos of Datolite associated with PectoliteNaCa2Si3O8(OH)

Related Minerals - Strunz-mindat GroupingHide

9.AJ.Hingganite-(Nd)Nd2β—»Be2Si2O8(OH)2Mon. 2/m : P21/b
9.AJ.Arrheniusite-(Ce)CaMg[(Ce7Y3)Ca5](SiO4)4(Si2B3AsO18)(BO3)F11Trig. 3m : R3m
9.AJ.05Ominelite(Fe2+,Mg)(Al,Fe3+)3(SiO4)(BO3)O2Orth. mmm (2/m 2/m 2/m)
9.AJ.05Grandidierite(Mg,Fe2+)(Al,Fe3+)3(SiO4)(BO3)O2Orth. mmm (2/m 2/m 2/m)
9.AJ.10DumortieriteAl(Al2O)(Al2O)2(SiO4)3(BO3)Orth. mmm (2/m 2/m 2/m)
9.AJ.10Nioboholtite(Nb0.6β—»0.4)Al6BSi3O18Orth. mmm (2/m 2/m 2/m) : Pbcm
9.AJ.10Titanoholtite(Ti0.75β—»0.25)Al6BSi3O18Orth. mmm (2/m 2/m 2/m) : Pbcm
9.AJ.10Holtite(Ta0.6β—»0.4)Al6BSi3O18(O,OH)2.25Orth. mmm (2/m 2/m 2/m) : Pnma
9.AJ.10MagnesiodumortieriteMg(Al2OH)(Al2O)2(SiO4)3(BO3)Orth. mmm (2/m 2/m 2/m)
9.AJ.15GarrelsiteBa3NaSi2B7O16(OH)4Mon. 2/m : B2/b
9.AJ.20Muromontitenear Be2FeY2Si3O12
9.AJ.20Gadolinite-(Nd)Nd2Fe2+Be2O2(SiO4)2Mon. 2/m : P21/b
9.AJ.20Melanocerite-(Ce)(Ce,Ca)5(SiO4,BO4)3(OH,O)Hex.
9.AJ.20Gadolinite-(Ce)(Ce,La,Nd,Y)2Fe2+Be2Si2O10Mon. 2/m
9.AJ.20Gadolinite-(Y)Y2Fe2+Be2Si2O10Mon. 2/m : P21/b
9.AJ.20Unnamed (OH-analogue of Gadolinite-(Y))(Y,Ca)2(Fe,β—»)Be2Si2O8(OH,O)2Mon. 2/m
9.AJ.20Hingganite-(Ce)(Ce,REE)2(β—»,Fe2+)Be2[SiO4]2(OH)2Mon. 2/m : P21/b
9.AJ.20Hingganite-(Y)(Y,REE,Ca)2(β—»,Fe2+)Be2[SiO4]2(OH)2Mon. 2/m : P21/b
9.AJ.20Hingganite-(Yb)(Yb,Y,REE)2β—»Be2[SiO4]2(OH)2Mon. 2/m : P21/b
9.AJ.20HomiliteCa2(Fe2+,Mg)B2Si2O10Mon. 2/m : P21/b
9.AJ.20Minasgeraisite-(Y)(Ca2Y2)β—»2(Be2B2)[SiO4]4(OH)4Tric. 1 : P1
9.AJ.20Calcybeborosilite-(Y)(Y,Ca)2(β—»,Fe2+)(B,Be)2[SiO4]2(OH,O)2Mon.
9.AJ.25Stillwellite-(La)LaBSiO5Trig. 3 2 : P32 2 1
9.AJ.25Stillwellite-(Ce)(Ce,La,Ca)BSiO5Trig. 3 : P31
9.AJ.30Cappelenite-(Y)Ba(Y,Ce)6Si3B6O24F2Trig. 3 : P3
9.AJ.35Laptevite-(Ce)Ca6(Fe2+,Mn2+)Y3REE7(SiO4)3(PO4)(B3Si3O18)(BO3)F11Trig. 3m : R3m
9.AJ.35Proshchenkoite-(Y)Ca(Y,REE,Ca,Na,Mn)15Fe2+(P,Si)Si6B3O34F14Trig. 3m : R3m
9.AJ.35Okanoganite-(Y)(Na,Ca)3(Y,Ce)12Si6B2O27F14Trig. 3m : R3m
9.AJ.35Hundholmenite-(Y)(Y,REE,Ca,Na)15(Al,Fe3+)(CaxAs3+1-x)(Si,As5+)Si6B3(O,F)48Trig. 3m : R3m
9.AJ.35Vicanite-(Ce)(Ca,Ce,La,Th)15As5+(As3+0.5,Na0.5)Fe3+Si6B4O40F7Trig. 3m : R3m
9.AJ.40JadariteLiNaSiB3O7(OH)Mon. 2/m

Fluorescence of DatoliteHide

In UV light:
Commonly fluoresces blue under SW UV.

Other InformationHide

Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

Datolite in petrologyHide

An essential component of rock names highlighted in red, an accessory component in rock names highlighted in green.

Internet Links for DatoliteHide

References for DatoliteHide

Reference List:
Marinoni, L., Caucia, F., Gilio, M., Scacchetti, M. (2023): Evaluation of the Gemological Properties of Datolites from the Campotrera Deposit in the Northern Apennines (Italy). Minerals, 13, 1057.
Klaproth, M.H. (1806): Chemische Untersuchung des Datoliths. Neues allgemeines Journal der Chemie. 6, 107-110
Klaproth, M. H. (1807) CLXIV. Untersuchung des Datoliths. In BeitrΓ€ge zur chemischen Kenntniss der MineralkΓΆrper Vol. 4. Rottmann. p.354-359.
Hausmann, J.F.L (1810) Bermerkungen ΓΌber den Datolith, von der NΓΆdebroe-Grube bei Arendal in Norwegen. BeitrΓ€ge zur Naturkunde, 2, 59-67.
Anderson, C. (1906) Mineralogical notes. No. III. Axinite, petterdite, crocoite, and datolite. Records of the Australian Museum, 6. 133-144 doi:10.3853/j.0067-1975.6.1906.998
Kraus, E.H., Cook, C.W. (1906). Datolite from Westfield, Massachusetts. American Journal of Science, 22(127), 21.
Shannon, Earl V. (1919) Famous mineral localities: The datolite locality near Westfield, Massachusetts. American Mineralogist, 4 (1) 5-6
Shannon, E.V. (1921). A crystallographic study of the datolite from Westfield, Massachusetts. Proceedings of the United States National Museum.
Ito, T., Mori, H. (1953) The crystal structure of datolite. Acta Crystallographica, 6 (1) 24-32 doi:10.1107/s0365110x53000041
Dearman, W. R. (1966) Datolite from Meldon, Okehampton, Devonshire. Mineralogical Magazine and Journal of the Mineralogical Society, 35 (275) 1017-1018 doi:10.1180/minmag.1966.035.275.16
Pant, A. K., Cruickshank, D. W. J. (1967) A reconsideration of the structure of datolite, CaBSiO4(OH). Zeitschrift fΓΌr Kristallographie, 125 (1-6). 286-297 doi:10.1524/zkri.1967.125.125.286
Yagi, Kenzo, Sato, Fumio (1968) Datolite from Furano Mine, Hokkaido. Journal of the Faculty of Science, Hokkaido University. Series 4, Geology and mineralogy, 14 (1). 97-102
Bershov, L.V., Martiros, V.O. (1970). Point defects in borosilicates danburite and datolite. SOVIET PHYSICS CRYSTALLOGRAPHY, USSR, 14(5), 823.
Sugitani, Y., Watanabe, M., Nagashima, K. (1972) The positions of the hydrogen atoms in datolite as determined by nuclear magnetic resonance. Acta Crystallographica Section B Structural Crystallography and Crystal Chemistry, 28 (1) 326-327 doi:10.1107/s0567740872002316
Foit, Franklin F., Phillips, M. W., Gibbs, and G. V. (1973) A refinement of the crystal structure of datolite, CaBSiO4(OH) American Mineralogist, 58 (9-10) 909-914
Grew, Edward S., Anovitz, Lawrence M., Grew, Edward S., Anovitz, Lawrence M. - Eds. (1996) Boron - Mineralogy, Petrology and Geochemistry. Reviews in Mineralogy Vol. 33. Mineralogical Society of America
Belokoneva, E.L., Goryunova, A.N. (1998). Electron density and chemical bonding in natural borosilicate datolite from precision X-ray diffraction data. Russian journal of inorganic chemistry, 43(12), 1915-1927.
(2001) Datolite. Handbook of Mineralogy. Mineralogical Society of America
Rosemeyer, Tom (2003) The Occurrence of Porcelaneous Datolite in Michigan's Lake Superior Copper District. Rocks & Minerals, 78 (3) 170-188 doi:10.1080/00357529.2003.9926717
Rosemeyer, Tom (2005) The Occurrence of Porcelaneous Datolite in Michigan's Lake Superior Copper District. Rocks & Minerals, 80 (3) 154-177 doi:10.3200/rmin.80.3.154-177
Bellatreccia, F., CΓ‘mara, F., Della Ventura, G. (2006): Datolite: a new occurrence in volcanic ejecta (Pitigliano, Toscana, Italy) and crystal-structure refinement. Rendiconti dell'Accademia Nazionale dei Lincei, Scienze Fisiche e Naturali, Serie 9, 17, 289-298.
Ivanov, Yu. V., Belokoneva, E. L. (2007) Multipole refinement and electron density analysis in natural borosilicate datolite using X-ray diffraction data. Acta Crystallographica Section B Structural Science, 63 (1) 49-55 doi:10.1107/s0108768106041681
Cook, Robert B. (2010) Connoisseur's Choice: Datolite, Dalnegorsk, Primorskiy Kray, Russia. Rocks & Minerals, 85 (4). 338-345 doi:10.1080/00357529.2010.492658
Bačík, Peter, Miyawaki, Ritsuro, Atencio, Daniel, CÑmara, Fernando, FridrichovÑ, Jana (2017) Nomenclature of the gadolinite supergroup. European Journal of Mineralogy, 29 (6) 1067-1082 doi:10.1127/ejm/2017/0029-2659

Localities for DatoliteHide

This map shows a selection of localities that have latitude and longitude coordinates recorded. Click on the symbol to view information about a locality. The symbol next to localities in the list can be used to jump to that position on the map.

Locality ListHide

- This locality has map coordinates listed. - This locality has estimated coordinates. β“˜ - Click for references and further information on this occurrence. ? - Indicates mineral may be doubtful at this locality. - Good crystals or important locality for species. - World class for species or very significant. (TL) - Type Locality for a valid mineral species. (FRL) - First Recorded Locality for everything else (eg varieties). Struck out - Mineral was erroneously reported from this locality. Faded * - Never found at this locality but inferred to have existed at some point in the past (e.g. from pseudomorphs).

All localities listed without proper references should be considered as questionable.
Antarctica
 
  • South Orkney Islands
Thomson (1974)
Australia
 
  • New South Wales
    • Camden County
      • Croom
Graham et al. (2018)
    • Northumberland County
      • Allandale
Greg Dainty +1 other reference
  • Tasmania
    • West Coast municipality
      • Mt Lindsay mineral field
      • Rosebery district
        • Colebrook Hill
Sorrell (n.d.)
      • Zeehan mining district
Keays et al. (2013)
  • Victoria
    • City of Greater Shepparton
      • Dookie
G L Morvell (1976)
  • Western Australia
    • Wyndham-East Kimberley Shire
      • Kachana Station
Jon Huntington
Austria
 
  • Carinthia
    • Spittal an der Drau District
      • Reißeck
        • Kolbnitz
          • Riekengraben
Walter F. (2022)
    • Villach-Land District
      • Bad Bleiberg
BrandstΓ€tter et al. (2010)
  • Lower Austria
    • Waidhofen an der Thaya District
      • Raabs an der Thaya
        • Eibenstein an der Thaya
Kolitsch et al. (2015)
  • Salzburg
    • St. Johann im Pongau District
      • Bad Gastein
        • Naßfeld valley
Strasser (1989)
    • Zell am See District
      • Bramberg am Wildkogel
        • Kratzenberg
Strasser (1989)
Strasser (1989)
Strasser (1989)
Strasser (1989)
      • Hollersbach im Pinzgau
- (n.d.)
Strasser (1989)
        • SandebentΓΆrl
Strasser (1989)
      • Krimml
Strasser (1989)
      • Neukirchen am Großvenediger
Strasser (1989)
      • Rauris
        • Grieswies - Krumlkeeskopf area
Strasser (1989)
      • Uttendorf
        • Γ–denwinkel glacier
          • Γ–denwinkel area
Strasser (1989)
Strasser (1989)
  • Styria
    • Bruck-MΓΌrzzuschlag District
      • Breitenau am Hochlantsch
        • Eibegggraben
Postl (2008)
  • Tyrol
    • Lienz District
      • Kals am Großglockner
        • Teischnitz valley
Walter F. (2022)
      • Matrei in Osttirol
        • GschlΓΆss valley
          • InnergschlΓΆss
Exel (1993)
Brazil
 
  • Minas Gerais
    • Itinga
Sergio Varvello collection
Canada
 
  • British Columbia
    • Liard Mining Division
Coulson et al. (2007)
    • Vancouver Island
      • Nanaimo Mining Division
        • Qualicum Bay Area
Jim McKinnon
  • Ontario
162-165. +1 other reference
    • Frontenac County
      • Loughborough Township
Traill (1983)
    • Haliburton County
      • Highlands East Township
        • Monmouth Township
geological survey of canada economic ... +1 other reference
[var: Bakerite] Perchiazzi et al. (2004)
    • Hastings County
      • Faraday Township
Ontario MNR
      • Town of Bancroft
        • Dungannon Township
Tschernich (1992)
  • QuΓ©bec
    • Laurentides
      • Argenteuil RCM
        • Grenville-sur-la-Rouge
Can. Mus. Nature & P. Belley coll.
        • Wentworth
          • Laurel
Tschernich (1992)
    • MontΓ©rΓ©gie
      • La VallΓ©e-du-Richelieu RCM
        • Mont Saint-Hilaire
Grice (1989) +1 other reference
    • Outaouais
      • Les Collines-de-l'Outaouais RCM
        • Chelsea
          • Autoroute 5 extension
Canadian Museum of Nature (XRD)
XRD - HorvΓ‘th & Levinger collections
        • La PΓͺche
          • Wakefield
            • Autoroute 5 roadcuts
Belley et al. (2016)
      • Papineau RCM
        • Mulgrave-et-Derry
Sabina (1986) +1 other reference
  • Yukon
    • Watson Lake mining district
      • Cassiar Mountains
        • Screw Creek
Pavel M. Kartashov analytical data of ...
China
 
  • Hubei
    • Huangshi
      • Daye Co.
Ottens (2003)
      • Tieshan District
Journal of China University of Geosciences 16 (6)
  • Inner Mongolia
    • Chifeng City (Ulanhad League; Chifeng Prefecture)
      • Hexigten Banner (Keshiketeng Co.)
        • Huanggang Fe-Sn deposit
Ottens et al. (2012)
Ottens et al. (2014)
[var: Bakerite] MΓΆhn et al. (05/2021)
  • Jiangxi
    • Shangrao
      • Yanshan Co. (Qianshan Co.)
        • Yongping
Zongting Liao et al. (2001)
  • Yunnan
    • Honghe
      • Gejiu City
Yiming Zhao and Daxin Li (1987) +1 other reference
          • Malage ore field
Xu Jinsha et al. (2019)
  • Zhejiang
    • Huzhou
      • Changxing Co.
Kamitani et al. (2007)
Czech Republic
 
  • Central Bohemian Region
    • Beroun District
      • Beroun
Strnad
    • KutnΓ‘ Hora District
PauliΕ‘ +5 other references
        • Moldanubian Zone pegmatites
          • HolΓ½ vrch deposit
NovΓ‘k et al. (2013) +1 other reference
      • Ε½leby
Litochleb +5 other references
  • Moravian-Silesian Region
    • FrΓ½dek-MΓ­stek District
      • KrmelΓ­n
MatΓ½sek (1993)
      • Ε½ermanice
KudΔ›lΓ‘sek +1 other reference
  • South Moravian Region
    • Brno-Country District
Houzar
  • Vysočina Region
    • ŽďÑr nad SΓ‘zavou District
Houzar +5 other references
Finland
 
  • Kanta-HΓ€me
    • Forssa
Ilkka Mikkola data
Ilkka Mikkola data
France
 
  • Grand Est
    • Bas-Rhin
      • Molsheim
        • Saint-Nabor
Wittern et al. (1997)
    • Haut-Rhin
Schupp et al. (2012)
    • Vosges
      • Saint-DiΓ©-des-Vosges
        • Raon-l'Γ‰tape
Wittern et al. (1997)
  • New Caledonia
    • Northern Province
      • Canala
Maurizot et al. (2020)
  • Nouvelle-Aquitaine
    • Haute-Vienne
      • Rochechouart
        • Champagnac-la-RiviΓ¨re
Lebocey et al. (2023)
  • Provence-Alpes-CΓ΄te d'Azur
    • Hautes-Alpes
      • BrianΓ§on
        • CerviΓ¨res
Pusztaszeri (1969)
Germany
 
  • Baden-WΓΌrttemberg
    • Freiburg Region
      • Breisgau-Hochschwarzwald
        • Buggingen
Braitsch et al. (1964)
      • Freiburg im Breisgau
        • Ebnet
          • Roßkopf
Walenta (1992)
        • Herdern
Weiß (1990)
      • Ortenaukreis
        • Haslach im Kinzigtal
          • Haslach im Kinzigtal
Walenta (1992)
          • Steinach
[Wittern (1995)
        • Wolfach
          • Reutherberg
Walenta (1996)
  • Bavaria
    • Swabia
      • OberallgΓ€u District
        • Bad Hindelang
          • Hinterstein
Weiß (1990)
  • Hesse
    • Darmstadt
      • Darmstadt-Dieburg
        • MΓΌhltal
          • Nieder-Beerbach
Cook (2010)
    • Giessen Region
      • Lahn-Dill-Kreis
        • Herborn
Vieten (1971) +1 other reference
      • Marburg-Biedenkopf
        • Bad Endbach
          • Hartenrod
Weiß (1990)
  • Lower Saxony
    • Goslar District
      • Bad Harzburg
        • Radau valley
      • Braunlage
        • St Andreasberg
      • Clausthal-Zellerfeld
        • Hut valley
Weiß (1990)
      • Harz (Landkreis Goslar)
BaumgΓ€rtl (2014)
        • Trutenbeek valley
Weiß (1990)
    • St Andreasberg Mining District
Weiß (1990)
  • North Rhine-Westphalia
    • Arnsberg
      • Hochsauerlandkreis
        • Winterberg
          • Hildfeld
Weiß (1990)
          • Silbach
Weiß (1990) +1 other reference
  • Rhineland-Palatinate
    • Donnersbergkreis
      • NordpfΓ€lzer Land
        • Waldgrehweiler
Hartmut Hensel collection
    • Kaiserslautern
      • Otterbach-Otterberg
        • Niederkirchen
Weiß (1990)
    • Kusel
      • Lauterecken-Wolfstein
        • Hefersweiler
Hirsch (1838)
        • Kreimbach-Kaulbach
Weiß (1990)
  • Saxony
    • Erzgebirgskreis
      • Schwarzenberg
Wittern (2001)
  • Thuringia
    • Schmalkalden-Meiningen District
      • Floh-Seligenthal
        • Schnellbach
Wittern (2001)
Hungary
 
  • Heves County
    • Eger District
      • Egerbakta
SzakΓ‘ll et al. (1996)
Italy
 
  • Emilia-Romagna
    • Metropolitan City of Bologna
      • Camugnano
Bombicci (1886) +3 other references
      • Castel di Casio
Bombicci (1873) +3 other references
      • Castiglione dei Pepoli
Calanchi et al. (1980) +2 other references
    • Modena Province
      • Frassinoro
Borghi et al. (1996) +1 other reference
      • Palagano
Gallitelli (1929) +2 other references
Malagoli (1884) +10 other references
Malagoli (1884) +4 other references
Haidinger (1849 a) +12 other references
      • Pavullo nel Frignano
        • Renno
Bertolani (1962) +3 other references
      • Pievepelago
Bertolani (1948) +3 other references
      • Polinago
www.mineralimodenesi.it (2011)
      • Sestola
        • Vesale
    • Parma Province
      • Berceto
        • Ghiare
Adorni (1993)
      • Valmozzola
Bartoli et al. +1 other reference
    • Piacenza Province
      • Coli
Agliuzza F. et al. (2014)
      • Ferriere
Baldizzone (2008)
    • Reggio Emilia Province
      • Canossa
De Michele (1974)
Marinoni et al. (2023)
      • Villa Minozzo
Cenni di mineralogia. P.Patteri - Guida ... +1 other reference
  • Liguria
    • Genoa
      • Casarza Ligure
Antofilli et al. (1983) +1 other reference
[var: Bakerite]
      • Ne
        • Reppia
[var: Bakerite] 415 (360) +1 other reference
    • La Spezia Province
      • Carro
Antofilli et al. (1983)
      • Deiva Marina
Antofilli et al. (1983)
      • Levanto
Bracco R. et al. (La Spezia, Liguria)
      • Zignago
        • Mt. Dragnone
Antofilli et al. (1983) +1 other reference
  • Lombardy
    • Sondrio Province
      • Chiesa in Valmalenco
Marchesini et al. (2025)
      • Grosio
        • Grosina Valley
          • Eita
Bedognè et al. (2006)
      • Valdidentro
        • Isolaccia
Bedognè et al. (2006)
      • Valdisotto
Romani et al. (1997) +1 other reference
  • Piedmont
    • Metropolitan City of Turin
      • Luserna San Giovanni
Finello et al. (2007)
Finello et al. (2007)
    • Verbano-Cusio-Ossola Province
      • Baceno
        • Devero Alp
Graeser et al. (1995)
      • Baveno
        • Oltrefiume
          • Mount Camoscio
Albertini (1983)
      • Beura-Cardezza
Boscardin et al. (1973) +1 other reference
R.M.I. 1997 n. 2 pg. 157 to 170 / ...
      • Villadossola
Rivista Mineralogica Italiana
  • Trentino-Alto Adige (Trentino-South Tyrol)
    • South Tyrol
      • Eisacktal (Valle Isarco)
        • Villnâß (Funes)
M. Rapazzini (1973)
      • Puster Valley District
        • Prettau (Predoi)
Exel (1987)
Exel (1987)
      • Salten-Schlern (Salto-Sciliar)
        • Kastelruth (Castelrotto)
Exel (1987)
De Michele (1974)
De Michele (1974) +2 other references
          • Saltaria Valley (Jender Valley)
- (1913) +1 other reference
    • Trento Province
Boselli et al. (2013)
      • Mazzin
Lorenz (2002)
      • San Giovanni di Fassa
Exel (1987)
Tacconi (1905) +1 other reference
  • Tuscany
    • Grosseto Province
      • Pitigliano
Bellatreccia et al. (2006)
    • Livorno Province
      • Collesalvetti
Sammartino (2013-2014) +1 other reference
Sammartino (2014)
    • Metropolitan City of Florence
      • Barberino di Mugello
Michele Dondi find & collection
      • Firenzuola
Gennazzani A.
          • Monte Beni
De Michele (1974) +1 other reference
De Michele (1974) +2 other references
Brizzi G. et al. (FI)
Brizzi G. (1996)
    • Pisa Province
      • Montecatini Val di Cecina
Terenzi A. (1988) +1 other reference
      • Pomarance
        • Larderello
Cavarretta et al. (1990)
    • Prato Province
      • Prato
        • Monte Ferrato
Brizzi G. et al. (1996)
Japan
 
  • Ehime Prefecture
    • Kamiukena District
Masutomi Museum specimens +1 other reference
  • Fukushima Prefecture
Matsuyama (2001)
  • Hokkaidō Prefecture
    • Okhotsk Subprefecture
      • Tokoro District
        • Oketo town
Watanabe J and Hasegawa K (1986)
  • Kochi Prefecture
    • Kochi City
      • Engyouji (Engyoji)
T. Minakawa (1984)
      • Rendai
Mineralogical Journal Vol. 13 (1986)
    • Nankoku city
Watanabe J and Hasegawa K (1986)
    • Tosa District
      • Okawa-mura
Watanabe J and Hasegawa K (1986)
  • Miyazaki Prefecture
    • Nishiusuki District
      • Hinokage
specimens seen in private collections in Japan (Alfredo Petrov)
      • Takachiho
Wada (1904)
Harada +2 other references
  • Nagano Prefecture
    • Kashio
Matsubara et al. (2011)
  • Oita Prefecture
    • Bungo-Ono City
Uehara et al. (2014)
  • Okayama Prefecture
    • Takahashi City
      • BitchΕ«
        • Fuka
[var: Bakerite] Kusachi et al. (1994) +1 other reference
  • Saitama Prefecture
    • Chichibu City
      • Ohtaki-mura
        • Nakatsugawa
- (n.d.)
Suzuki (2009)
  • Shizuoka Prefecture
Sameshima +1 other reference
    • Shizuoka City
      • Aoi Ward
        • Kuchisakamoto
Majima collection
    • Yaizu City
Watanabe J and Hasegawa K (1986)
  • Tokyo Metropolis
    • Nishitama district
      • Okutama-cho
Matsubara et al. (2004) +1 other reference
Kazakhstan
 
  • Kostanay Region
    • Kostanay District
Попов Π’.А. (2010)
Kyrgyzstan
 
  • Batken Region
    • Batken District
Pautov et al. (2013)
  • Issyk-Kul Region
Soloviev (2011)
Mexico
 
  • Durango
    • Durango Municipality
Peter Megaw collector
  • Guanajuato
    • Guanajuato Municipality
      • Guanajuato
Panczner (1987)
      • La Luz
Panczner (1987)
  • Hidalgo
    • ZimapΓ‘n Municipality
Peter Megaw
  • San Luis PotosΓ­
    • Charcas Municipality
[var: Bakerite]
...
[var: Bakerite] Panczner (1987)
[var: Bakerite] Panczner (1987)
[var: Bakerite] Panczner (1987)
  • Sinaloa
    • Badiraguato Municipality
      • Alisito
American Mineralogist 28:257-271
  • Zacatecas
    • Sombrerete Municipality
      • San MartΓ­n
        • San MartΓ­n-Sabinas District
Megaw (2023)
Morocco
 
  • Rabat-SalΓ©-KΓ©nitra Region
    • KhΓ©misset Province
      • KhΓ©misset Cercle
        • Ait Mimoune CaΓ―dat
          • El Hammam
Econ Geol (1989)
      • OulmΓ¨s Cercle
Ph. M. Sonnet : "Burtite
Namibia
 
  • Erongo Region
    • Omaruru Constituency
Jahn et al. (2006) +1 other reference
New Zealand
 
  • Hawke's Bay Region
    • Wairoa District
      • Lake Waikaremoana
Railton et al. (1990)
  • Wellington Region
    • South Wairarapa District
[var: Bakerite] Ansin (1970) +1 other reference
North Korea
 
  • North Hwanghae Province
    • Suan County
      • Hol Kol mine (Holgol; Suan; Namjong)
watanabe (in: Geology and Mineral Resources of the Far East, University of Tokyo Press, 1969)
Norway
 
  • Agder
    • Arendal
      • Øyestad
[var: Botryolite] Weibye (1848)
          • Kjenlie Mines
[var: Botryolite] Holm (1824)
Klaproth (1806)
  • Buskerud
    • Kongsberg
      • Overberget Mining Field
Kullerud et al. (2024)
Johnsen (1986)
BrΓΈgger (1890, January)
  • MΓΈre og Romsdal
    • Fjord
      • Norddal
        • Tafjord
Eldjarn (1981) +1 other reference
  • Telemark
    • Porsgrunn
      • Auenlandet
        • SagΓ₯sen
Larsen et al. (2023)
      • BjΓΈrkedalen
Andersen et al. (1996)
      • RisΓΈya
Berge (n.d.)
Engvoldsen et al. (1991)
      • Slevolden
Burvald (1993)
  • Vestfold
    • Larvik Commune
      • Hedrum
        • LΓ₯gendalen
Larsen et al. (2010)
Andersen (1993)
      • MalerΓΈd
Berge (1993) +1 other reference
      • TjΓΈlling
        • HΓ₯kestad
Nordrum (2001)
        • KlΓ₯stad
Larsen et al. (2010)
        • StΓ₯laker
Engvoldsen et al. (1991)
      • Tvedalen
        • MΓΈrje
Larsen et al. (2010)
    • Sandefjord
      • VesterΓΈya
Andersen +1 other reference
  • Vestland
    • Vaksdal
Selbekk (1990) +1 other reference
Poland
 
  • Silesian Voivodeship
    • Bielsko County
      • Gmina Jasienica
Karwowski et al. (1994) +3 other references
Russia
 
  • Chelyabinsk Oblast
    • Chebarkulsky District
Kolesnichenko
    • Magnitogorsk
Alexei Kuznetsov data
  • Irkutsk Oblast
    • Nizhneilimsky District
      • Zheleznogorsk-Ilimsky
Mazurov et al. (2007)
  • Kabardino-Balkaria
    • Elbrussky District
      • Tyrnyauz Urban Settlement
Kulikov et al. (1989)
  • Khanty-Mansi Autonomous Okrug
    • Berezovo district
      • Saranpaul
Burlakov (1999)
  • Krasnoyarsk Krai
    • Taymyrskiy Autonomous Okrug
      • Taimyr Peninsula
Spiridonov et al. (2008) +1 other reference
  • Murmansk Oblast
  • Primorsky Krai
    • Dalnegorsk Urban District
      • Dalnegorsk
Grant et al. (2001)
Vasilenko (2001)
Rock & Gem +2 other references
Grant et al. (2001) +1 other reference
Vasilenko (2001)
        • Partizanskoe Pb-Zn deposit (Partizansky)
Grant et al. (2001)
Grant et al. (2001)
Pavel.M. Kartashov (n.d.)
[World of Stones 12:49]
    • Aldan
Pavel.M. Kartashov (n.d.)
  • Sverdlovsk Oblast
    • Asbest
Igor Savin data +1 other reference
  • Tuva
    • Chedi-Kholsky District
Lebedev et al. (2019)
  • Ural Mountains
HyrΕ‘l (1992)
Slovakia
 
  • PreΕ‘ov Region
    • PreΕ‘ov District
      • Fintice
Ďuďa
      • VyΕ‘nΓ‘ Ε ebastovΓ‘
Ďuďa
      • ZΓ‘hradnΓ©
Duda eut al.
  • Trnava Region
    • Trnava District
      • LoΕ‘onec
Uher et al. (MalΓ© Karpaty, JZ Slovensko)
South Africa
 
  • Limpopo
    • Mopani District Municipality
      • Ba-Phalaborwa Local Municipality
        • Phalaborwa
Braithwaite et al. (1991) +1 other reference
  • Northern Cape
    • John Taolo Gaetsewe District Municipality
      • Joe Morolong Local Municipality
        • N'Chwaning Mines
Cairncross et al. (1995)
Cairncross et al. (1993)
Spain
 
  • Andalusia
    • MΓ‘laga
      • OjΓ©n
Romero Silva (2003) +1 other reference
  • Basque Country
    • Biscay
Calvo et al. (1993)
Calvo (2018)
  • Community of Madrid
    • La Cabrera
Tánago et al. (2012)
  • Murcia
    • CehegΓ­n
      • BaΓ±os de Gilico
[var: Bakerite] Calvo (2018)
  • Valencian Community
    • Alicante
      • Albatera
Calvo (2018)
Sweden
 
  • Norrbotten County
    • GΓ€llivare
Lyckberg (2006)
  • Γ–rebro County
    • Lekeberg
  • SΓΆdermanland County
    • StrΓ€ngnΓ€s
      • Γ…ker
Natural History Museum Stockholm ... +1 other reference
  • Stockholm County
    • Haninge
      • UtΓΆ
Flink (1916) +1 other reference
  • Uppsala County
    • Γ–sthammar
      • BarkΓΆ mines
Brunnberg (2020)
Anonymous (1991) +1 other reference
  • VΓ€rmland County
    • Filipstad
      • LΓ₯ngban Ore District
Gatedal (n.d.) +1 other reference
Gatedal (n.d.) +2 other references
Flink (1916)
Flink (1916)
Switzerland
 
  • Grisons
    • Moesa Region
      • Calanca
        • Arvigo
          • Gneiss quarries
Hanneberg et al. (2009) +1 other reference
    • Surselva Region
      • Medel (Lucmagn)
        • Val Medel
Stalder et al. (1998)
Stalder et al. (1998)
      • Tujetsch
        • Val Giuv
Stalder et al. (1998)
Stalder et al. (1998)
  • Valais
    • Entremont
      • Sembrancher
Meisser et al. (1996)
Stalder et al. (1998)
    • Goms
      • Binn
Gorelova +7 other references
Taiwan
 
  • Pingtung County
Lin Szu Bin +2 other references
Tajikistan
 
  • Districts of Republican Subordination
Pekov (1998) +1 other reference
  • Sughd
    • Mastchoh District
      • Altyn-Topkan ore field (Zarnisor ore field)
Badalov et al. (1976)
Badalov et al. (1976)
Turkey
 
  • Balikesir Province
    • BigadiΓ§ District
      • FaraşkΓΆy
[var: Bakerite] Helvaci et al. (2000) +1 other reference
    • Susurluk District
      • SultanΓ§ayΔ±rΔ±
[var: Bakerite] Helvaci et al. (2000) +2 other references
  • Sivas Province
    • Hafik District
[var: Bakerite] Perchiazzi et al. (2004)
UK
 
  • England
    • Cornwall
      • Menheniot
        • Lower Clicker
Golley et al. (1995)
      • Mullion
Russell (1910) +1 other reference
Collected by Trevor Bridges.
    • Devon
      • Teignbridge
        • Ilsington
      • West Devon
        • Okehampton Hamlets
Dearman (1966) +3 other references
el-Sharkawi et al. (1961) +3 other references
Dearman (1966) +1 other reference
        • South Tawton
[Specimen in the Natural History Museum +2 other references
    • Northumberland
      • Chollerton
B. A. O. Randall (1959)
    • Somerset
      • Mendip
        • Cranmore
Symes (1977) +2 other references
  • Scotland
    • City of Edinburgh
Mineralogical Magazine 1884 6 : 104-105
Taylor (1884)
    • Fife
      • Raith
James Phemister and A. G. MacGregor (1942)
    • Highland
      • Eilean Γ‘ ChΓ¨o
        • Isle of Skye
          • Broadford
            • Kilchrist
            • Torrin
Livingstone (2002)
    • Perth and Kinross
      • Ochil Hills
Livingstone +1 other reference
Ukraine
 
World of Stones v.9
    • Bakhchysarai
      • Trudolyubovka
Karpenko V. (New Data on Minerals)
    • Feodosia area
Tischenko A. data
    • Simeiz area
      • Goluboi Zaliv village (Limeny)
Dvoichenko (1914)
USA
 
  • Arizona
    • Pima County
      • Helvetia-Rosemont Mining District
Anthony et al. (1995)
      • Sierrita Mountains
        • Pima Mining District
          • San Xavier
            • Mission complex
Anthony et al. (1995)
  • California
    • Colusa County
      • Coast Ranges
        • Stonyford
Mr. Gail E. Dunning.
        • Sulphur Creek Mining District (Sulfur Creek Mining District; Wilbur Springs Mining District)
          • Wilbur Springs
Murdoch (1966)
    • Inyo County
      • Amargosa Range
        • Black Mountains
          • Corkscrew Canyon
[var: Bakerite] Murdoch et al. (1966)
      • Furnace Creek Mining District (Furnace Creek Borate Mining District)
        • Ryan
[var: Bakerite] Giles (1903) +1 other reference
          • Mouth of Corkscrew Canyon area
[var: Bakerite] Larsen (1921) +1 other reference
[var: Bakerite] Perchiazzi et al. (2004)
      • Inyo Mts (Inyo Range)
        • Kearsarge Mining District [2]
          • Kearsarge
Smith (1874) +5 other references
    • Los Angeles County
      • Lang
        • Tick Canyon
          • Tick Canyon Borate deposit
[var: Bakerite] Murdoch (1962) +6 other references
Pelletier
    • Mendocino County
      • Cloverdale area
        • Russian River
Pabst et al. (1967) +2 other references
    • Riverside County
      • Jurupa Valley
        • Crestmore
          • Crestmore quarries
            • Sky Blue Hill
Woodford et al. (1941)
    • San Benito County
      • Goat Mountain
Pemberton (1983) +1 other reference
      • Idria Peak
www.mineralsocal.org (1999)
XRF and XRD analysis by David Lowe of ... +1 other reference
[var: Bakerite] Harvard Museum of Natural History ...
Hanks (1884) +1 other reference
        • Calico District (Daggett District; Calico-Daggett area)
          • Calico
            • Pacific Mine (Pacific Coast Borax Company properties; Borate; Borate Colemanite Mines; Calico; Old Borate; Pacific Coast Borax Co. workings)
[var: Bakerite] Palache et al. (1951)
[var: Bakerite] Giles (1903) +1 other reference
Kunz (1905) +1 other reference
    • San Francisco County
      • San Francisco
with chemical analyses by W.T. ... +7 other references
www.mineralsocal.org (1999)
    • Sonoma County
      • West Mayacmas Mining District
Bird et al. (1984)
  • Colorado
    • Park County
Minerals of Colorado (1997)
  • Connecticut
    • Fairfield County
      • Brookfield
former Ronald Januzzi collection.
      • Danbury
Januzzi et al. (1976) +1 other reference
    • Hartford County
      • Avon
John Burnham
      • Bloomfield
Ed Force collection +1 other reference
Collection of Mark A Gottlieb +1 other reference
      • East Granby
Wolfe et al. (1960)
Collection of Mark A Gottlieb
Longwell & Dana
Schooner (1961)
Moritz (n.d.)
Henderson (1995)
      • Hartford
Steinen (1991)
      • New Britain
King (n.d.)
Shepard Collection
Januzzi et al. (1976)
Moritz (n.d.)
P Cristofono collection
Moritz (n.d.)
R.Shepard Collection
Moritz (n.d.)
      • Plainville
Ryerson (1972)
Shepard Collection
      • Rocky Hill
Shepard (1837) +1 other reference
Wesleyan University collection
    • Litchfield County
      • Thomaston
        • Thomaston Dam
Segeler et al. (1985) +1 other reference
      • Woodbury
        • Orenaug Hills
Weber et al. (1995) +1 other reference
Januzzi et al. (1976) +1 other reference
    • Middlesex County
      • Durham
Brunet (1980) +2 other references
    • New Haven County
      • Cheshire
Tschernich (1992) +1 other reference
Moritz (n.d.)
Longwell & Dana
      • Meriden
Rowan M. Lytle Collection
Shannon (1920)
Moritz (n.d.)
      • North Branford
Shepard Collection
  • Maine
    • Hancock County
      • Blue Hill - Castine Mining District
        • Blue Hill
King et al. (1994)
    • Washington County
      • Perry
Thompson et al. (1998)
  • Massachusetts
Emerson (1917)
      • Deerfield
[var: Botryolite] Emerson (1882) +1 other reference
    • Hampden County
      • Holyoke
        • Mount Tom
Ted Johnson collection
      • West Springfield
      • Westfield
Shannon (1919)
    • Hampshire County
      • Amherst
Paul Gilmore collection
  • Michigan
    • Houghton County
      • Adams Township
        • Champion Mine
          • Champion Mine
Rosemeyer (2005)
Heinrich et al. (2004)
      • Calumet Township
        • Calumet
Heinrich et al. (2004)
Rosemeyer (2011)
Heinrich et al. (2004)
        • Centennial Heights
Morris (1983)
Rosemeyer (2007)
        • Kearsarge
Heinrich et al. (2004)
Paul Brandes
        • Osceola
Morris (1983)
Yalmer Primeau collection
        • Wolverine
Rocks & Min.: 13:137.
Rosemeyer (2007)
      • Elm River Township
        • Winona
Heinrich et al. (2004)
Rosemeyer (2005)
      • Franklin Township
        • Boston
Rosemeyer (2005) +1 other reference
        • Franklin Mine
Morris (1983)
Rosemeyer (2005) +1 other reference
        • Pewabic
Heinrich et al. (2004)
        • Ripley
Morris (1983)
Rosemeyer (2005)
Rosemeyer (2005)
Rosemeyer (2005)
      • Hancock
Morris (1983)
      • Houghton
Paul Brandes Collection
Yalmer F Prineau collection
Yalmer Primeau
      • Osceola Township
Rosemeyer (2005)
Morris (1983)
- (2005)
        • Tamarack
Morris (1983)
Heinrich et al. (2004)
      • Portage Township
Morris (1983)
Rosemeyer (2005)
Rosemeyer (2005)
        • Superior
Yalmer Primeau collection
      • Quincy Township
Rocks & Min.: 21:664.
      • Schoolcraft Township
Heinrich et al. (2004)
Heinrich et al. (2004)
Red Gold and Tarnished Silver
Heinrich et al. (2004) +1 other reference
    • Keweenaw County
      • Allouez Township
        • Ahmeek
Morris (1983)
        • Allouez
Rocks & Min.: 21:664.
Rosemeyer (2007)
Rosemeyer (2007)
Rocks & Min.: 58:111 & 121. +2 other references
        • Mohawk
          • Mohawk Mine
Rosemeyer (2005)
Heinrich et al. (2004)
        • Ojibway
Rosemeyer (2005) +1 other reference
        • Seneca
Rosemeyer (2005)
          • Seneca Mine
Rosemeyer (2005)
Rosemeyer (2007)
Visual identification by Jim Gawura
      • Eagle Harbor
Heinrich et al. (2004)
- (n.d.)
Heinrich et al. (2004) +2 other references
        • Copper Falls
Dana 6:505. +1 other reference
Morris (1983)
Rosemeyer (2009)
Heinrich et al. (2004) +1 other reference
- (2005)
R&M 78:3 p175 +2 other references
The Copper Country Rock & Mineral Club (2001)
Personally collected by Paul T. Brandes
      • Grant Township
- (2005)
        • Copper Harbor
Morris (1983) +2 other references
          • Mosquito Mining District
R&M 73:3 p194 +2 other references
Rosemeyer (2003) +2 other references
Morris (1983)
        • Delaware
Rocks & Min.:84:316.
Morris (1983) +2 other references
Rosemeyer (2003) +1 other reference
Heinrich et al. (2004) +1 other reference
Rosemeyer (2009)
Heinrich et al. (2004)
Heinrich et al. (2004)
        • Lac La Belle
- (2005)
        • Mandan
Yalmer F Primeau
Rosemeyer (2003)
Paul Brandes
- (2005)
Heinrich et al. (2004)
- (2005)
Rosemeyer et al. (2000)
- (2005)
      • Houghton Township
        • Central
R&M 78:3 p173 +1 other reference
Morris (1983) +1 other reference
Yalmer Primeau collection
Morris (1983)
        • Eagle River
Personally collected by Paul Brandes in ...
Bornhorst et al. (2011)
Heinrich et al. (2004)
        • Phoenix
Yalmer F Primeau
Morris (1983)
self collected at site +1 other reference
      • Isle Royale National Park
Ransom (1974)
Heinrich et al. (2004)
Heinrich et al. (2004)
Heinrich et al. (2004)
My general knowledge-Rock Currier
    • Marquette County
      • Republic
Dana 6: 505.
    • Ontonagon County
- (2005)
      • Greenland Township
        • Greenland
Rosemeyer (1990) +1 other reference
Heinrich et al. (2004)
        • Winona
Rosemeyer (2005)
Paul Brandes
Rosemeyer (2005)
Rosemeyer (2005)
      • Mass City
Rosemeyer (2005)
Rosemeyer (2005)
Rosemeyer (2005)
Morris (1983) +2 other references
Morris (1983)
Heinrich et al. (2004)
Rosemeyer (2005)
Rosemeyer (2005) +1 other reference
Rosemeyer (2005)
Rosemeyer (1990) +1 other reference
Heinrich et al. (2004)
Heinrich et al. (2004) +1 other reference
- (2005)
Rosemeyer (2005)
Paul T. Brandes
      • Rockland
Rosemeyer (2005)
Morris (1983)
Dana 6:1086 +1 other reference
Heinrich et al. (2004)
      • Victoria
Rosemeyer (2005)
Rosemeyer (2005)
  • Minnesota
Paul Brandes Collection
England (2020)
  • Montana
    • Hill County
      • Bearpaw Mountains
American Mineralogist 27:229 +1 other reference
  • New Jersey
    • Bergen County
      • Edgewater
Mins. of NYC & Environs (1931)
      • Fort Lee
Focus on Fort Lee - A Key and Guide to ... +1 other reference
    • Bergen County & Hudson County
Manchester (1919)
    • Essex County
      • Livingston
        • Livingston
Rothstein
      • Millburn
        • Millburn
Manchester (1931)
        • Short Hills
Manchester (1931)
      • Montclair
Manchester (1931)
        • Upper Montclair
Mins. of NYC & Its Environs (1931) +2 other references
Manchester (1931)
      • Verona
Manchester (1931)
    • Hudson County
      • Bergen Hill
Manchester (1931)
        • Weehawken
Darton (1882) +1 other reference
      • Jersey City
        • Bergen Hill
Manchester (1919) +1 other reference
Amer. Museum of Nat. Hist. +1 other reference
Amer. Jour. of Sci.: 40:69-73
      • Secaucus
Minerals of Laurel Hill et al. (published privately)
    • Hunterdon County
      • Delaware Township
Tomlinson (1945)
      • West Amwell Township
Ritter and Ritter 1956
    • Mercer County
Manchester (1931)
    • Morris County
King (n.d.)
    • Passaic County
      • Haledon
Imbriacco (2009)
      • Little Falls Township
        • Great Notch
Min. Collector: 15:113-118 (1908) +3 other references
      • North Haledon
- (1960)
      • Paterson
Bradley D. Plotkin collection
Dana 6:1066.
American Museum of Nat. History +1 other reference
Bradley D. Plotkin collection
Mineral Collector: 2:138-139 et al. (1895) +3 other references
      • Prospect Park
Rocks & Minerals 80:4 pp234-241 +4 other references
Rock Currier
Minerals of the "Riverview Drive" quarry et al. (1975)
Bradley D. Plotkin collection
    • Somerset County
      • Bedminster Township
Manchester (1931)
      • Bernards Township
Kent et al. (2000)
      • Bridgewater Township
Hawkins (1929) +1 other reference
      • Hillsborough Township
Laney and Husch (1998)
      • Watchung
Cummings (1987)
Manchester (1931)
    • Sussex County
      • Franklin
[var: Bakerite] Dunn (1995)
FOMS Millsite Committee (1986)
[var: Botryolite] Palache (1935)
    • Union County
      • Springfield Township
        • Springfield
Cummings (1987)
Rocks & Min.:13:75-79.
Manchester (1931)
  • New Mexico
Northrop et al. (1996)
Manchester (1931)
    • Lewis County
      • Diana Township
Chamberlain et al. (1999)
John H. Betts (2009)
    • Putnam County
      • Town of Southeast
- (Januzzi, 1966, 1989)
    • Rockland County
      • Orangetown
Manchester (1931)
Manchester (1931)
      • Suffern
Gary Moldovany collection
      • Town of Ramapo
Hershel Friedman collection (2009)
    • St. Lawrence County
      • De Kalb
Robinson (1990)
      • Fowler
        • Little York village
Engel (1962)
      • Russell
Edward S. Grew (2002) +1 other reference
Jensen (1978)
Jensen (1978)
  • Oregon
    • Lane County
      • Junction City
Micro Probe Volume VI Number 4
      • Lorane
Micro Probe Volume VI Number 4
  • Pennsylvania
    • Berks County
      • Birdsboro
        • Gibraltar
Rocks & Min.: 23:914-915.
      • Cumru Township
Gordon (1922)
      • Morgantown
The Mineralogy of Pennsylvania 1966-1975 +1 other reference
    • Chester County
      • Warwick Township
        • Saint Peters
Sloto et al. (1994)
    • Lebanon County
      • Cornwall Borough (Cornwall)
Lapham et al. (1965)
    • Montgomery County
      • Marlborough Township
        • Perkiomenville
Lapham et al. (1976)
    • York County
      • Dillsburg
Preston E. Hotz (1950) +2 other references
Lapham et al. (1976)
Preston E. Hotz (1950) +1 other reference
Preston E. Hotz (1950) +1 other reference
Lapham et al. (1976)
Preston E. Hotz (1950) +1 other reference
Lapham et al. (1976)
Lapham et al. (1976)
Preston E. Hotz (1950) +1 other reference
Lapham et al. (1976)
Lapham et al. (1976)
  • Rhode Island
    • Providence County
      • Lincoln
        • Lime Rock
Harvard Mineralogical Museum collection +1 other reference
  • Texas
    • Uvalde County
      • Knippa
Smith (2004)
  • Virginia
    • Fairfax County
      • Culpeper Basin
        • Centreville
D. Allen Penick (1987)
    • Fauquier County
      • Bealeton
Rock & Gem
    • Loudoun County
      • Conklin
Penick (1985) +1 other reference
Dietrich (1990)
      • Leesburg
Dietrich (1990)
Penick (1985)
Dietrich (1990)
Dietrich (1990)
Rock & Gem +1 other reference
Dietrich (1990)
    • Prince William County
      • Gainesville
Dietrich (1990)
      • Manassas
Rocks & Min.: 60:168.
  • Washington
    • Clallam County
Micro Probe Volume VII Number 8 Fall ...
    • Clark County
      • Orchards
Micro Probe VolumeVIII Number 8 Fall ...
    • Lewis County
Micro Probe Volume IX Number 2 Fall 2000
    • Skamania County
Cannon (1975)
- (n.d.)
  • Wisconsin
    • Douglas County
      • Amnicon Falls
Cordua (1991)
Cordua (1998)
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