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Plagioclase

A group of related mineral species
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04064060017271923319884.jpg
Albite

Poudrette quarry, Mont Saint-Hilaire, La Vallée-du-Richelieu RCM, Montérégie, Québec, Canada
07414420017271929298904.jpg
Albite, etc.

San Piero in Campo, Campo nell'Elba, Livorno Province, Tuscany, Italy
08085820017271929309754.jpg
Anorthite

Miyake Island, Miyake Subprefecture, Tokyo Metropolis, Japan
00136840017271929328340.jpg
Labradorite

YlÀmaa spectrolite quarries, YlÀmaa area, Lappeenranta, South Karelia, Finland
08252210017271923213728.jpg
Albite

Poudrette quarry, Mont Saint-Hilaire, La Vallée-du-Richelieu RCM, Montérégie, Québec, Canada
07414420017271929298904.jpg
Albite, etc.

San Piero in Campo, Campo nell'Elba, Livorno Province, Tuscany, Italy
08085820017271929309754.jpg
Anorthite

Miyake Island, Miyake Subprefecture, Tokyo Metropolis, Japan
00136840017271929328340.jpg
Labradorite

YlÀmaa spectrolite quarries, YlÀmaa area, Lappeenranta, South Karelia, Finland
04064060017271923319884.jpg
Albite

Poudrette quarry, Mont Saint-Hilaire, La Vallée-du-Richelieu RCM, Montérégie, Québec, Canada
07414420017271929298904.jpg
Albite, etc.

San Piero in Campo, Campo nell'Elba, Livorno Province, Tuscany, Italy
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About PlagioclaseHide

Formula:
(Na,Ca)[(Si,Al)AlSi2]O8
Member of:
Feldspar Group
In petrology, the plagioclase series are defined based on their percentage of the two end-members albite (Ab) to anorthite (An). Compositions of individual samples are usually written as An24Ab76 meaning in this case that it is a solid-solution member consisting of 24% anorthite and 76% albite.

List of plagioclase group members as used in petrology.

NameCompositionFormula
AnorthiteAn100Ab0 to An90Ab10CaAl2Si2O8
BytowniteAn90Ab10 to An70Ab30(Ca,Na)Al(Al,Si)Si2O8
LabradoriteAn70Ab30 to An50Ab50(Ca,Na)Al(Al,Si)Si2O8
AndesineAn50Ab50 to An30Ab70(Na,Ca)Al(Si,Al)Si2O8
OligoclaseAn30Ab70 to An10Ab90(Na,Ca)Al(Si,Al)Si2O8
AlbiteAn10Ab90 to An0Ab100NaAlSi3O8



Unique IdentifiersHide

Mindat ID:
9264
Long-form identifier:
mindat:1:1:9264:3

Mineral SymbolsHide

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

SymbolSourceReference
PlIMA–CNMNCWarr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43

Chemistry of PlagioclaseHide

Mindat Formula:
(Na,Ca)[(Si,Al)AlSi2]O8

Crystal StructureHide

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IDSpeciesReferenceLinkYearLocalityPressure (GPa)Temp (K)
0019652AlbiteHarlow G E (1982) The anorthoclase structures: The effects of temperature and composition American Mineralogist 67 975-9961982Grande Calderira, Azores0293
0019653AlbiteHarlow G E (1982) The anorthoclase structures: The effects of temperature and composition American Mineralogist 67 975-9961982Grande Calderira, Azores0673
0019654AlbiteHarlow G E (1982) The anorthoclase structures: The effects of temperature and composition American Mineralogist 67 975-9961982Mt Gibele, Pantelleria Islands, Italy0293
0019655AlbiteHarlow G E (1982) The anorthoclase structures: The effects of temperature and composition American Mineralogist 67 975-9961982Mt Gibele, Pantelleria Islands, Italy0783
0019656AlbiteHarlow G E (1982) The anorthoclase structures: The effects of temperature and composition American Mineralogist 67 975-9961982Kakanui, New Zealand0293
0019657AlbiteHarlow G E (1982) The anorthoclase structures: The effects of temperature and composition American Mineralogist 67 975-9961982Kakanui, New Zealand01023
0019660AlbiteFitzGerald J D, Parise J B, Mackinnon I D R (1986) Average structure of an An48 plagioclase from the Hogarth Ranges American Mineralogist 71 1399-14081986Hogarth Ranges, northern New South Wales, Australia0293
0019661AlbiteFitzGerald J D, Parise J B, Mackinnon I D R (1986) Average structure of an An48 plagioclase from the Hogarth Ranges American Mineralogist 71 1399-14081986Hogarth Ranges, northern New South Wales, Australia0293
0000536AlbitePrewitt C T, Sueno S, Papike J J (1976) The crystal structures of high albite and monalbite at high temperatures feldspar American Mineralogist 61 1213-12251976synthetic0297
0000537AlbitePrewitt C T, Sueno S, Papike J J (1976) The crystal structures of high albite and monalbite at high temperatures feldspar American Mineralogist 61 1213-12251976synthetic0623
0000538AlbitePrewitt C T, Sueno S, Papike J J (1976) The crystal structures of high albite and monalbite at high temperatures feldspar American Mineralogist 61 1213-12251976synthetic0873
0000539AlbitePrewitt C T, Sueno S, Papike J J (1976) The crystal structures of high albite and monalbite at high temperatures feldspar American Mineralogist 61 1213-12251976synthetic01023
0000540AlbitePrewitt C T, Sueno S, Papike J J (1976) The crystal structures of high albite and monalbite at high temperatures feldspar American Mineralogist 61 1213-12251976synthetic01223
0000541AlbitePrewitt C T, Sueno S, Papike J J (1976) The crystal structures of high albite and monalbite at high temperatures feldspar American Mineralogist 61 1213-12251976synthetic01363
0000542AlbitePrewitt C T, Sueno S, Papike J J (1976) The crystal structures of high albite and monalbite at high temperatures feldspar American Mineralogist 61 1213-12251976synthetic01378
0000595AlbiteWinter J K, Ghose S, Okamura F P (1977) A high-temperature study of the thermal expansion and the anisotropy of the sodium atom in low albite American Mineralogist 62 921-93119770773
0000596AlbiteWinter J K, Ghose S, Okamura F P (1977) A high-temperature study of the thermal expansion and the anisotropy of the sodium atom in low albite American Mineralogist 62 921-931197701023
0000597AlbiteWinter J K, Ghose S, Okamura F P (1977) A high-temperature study of the thermal expansion and the anisotropy of the sodium atom in low albite American Mineralogist 62 921-931197701243
0000694AlbiteKeefer K D, Brown G E (1978) Crystal structures and compositions of sanidine and high albite in cryptoperthitic intergrowth Note this sample of feldspar is from the Rabb Canyon pegmatite, Grant County, New Mexico, USA American Mineralogist 63 1264-127319780293
0000715AlbiteWinter J K, Okamura F P, Ghose S (1979) A high-temperature structural study of high albite, monalbite, and the analbite - monalbite phase transition American Mineralogist 64 409-4231979Tiburon, Marin County, California, USA0298
0000716AlbiteWinter J K, Okamura F P, Ghose S (1979) A high-temperature structural study of high albite, monalbite, and the analbite - monalbite phase transition American Mineralogist 64 409-4231979Tiburon, Marin County, California, USA0773
0000717AlbiteWinter J K, Okamura F P, Ghose S (1979) A high-temperature structural study of high albite, monalbite, and the analbite - monalbite phase transition American Mineralogist 64 409-4231979Tiburon, Marin County, California, USA01023
0000718AlbiteWinter J K, Okamura F P, Ghose S (1979) A high-temperature structural study of high albite, monalbite, and the analbite - monalbite phase transition American Mineralogist 64 409-4231979Tiburon, Marin County, California, USA01253
0000719AlbiteWinter J K, Okamura F P, Ghose S (1979) A high-temperature structural study of high albite, monalbite, and the analbite - monalbite phase transition American Mineralogist 64 409-4231979Tiburon, Marin County, California, USA01313
0000720AlbiteWinter J K, Okamura F P, Ghose S (1979) A high-temperature structural study of high albite, monalbite, and the analbite - monalbite phase transition American Mineralogist 64 409-4231979Tiburon, Marin County, California, USA01253
0000721AlbiteWinter J K, Okamura F P, Ghose S (1979) A high-temperature structural study of high albite, monalbite, and the analbite - monalbite phase transition American Mineralogist 64 409-4231979Tiburon, Marin County, California, USA01333
0000797AlbiteHarlow G E, Brown G E (1980) Low albite: An X-Ray and neutron diffraction study American Mineralogist 65 986-99519800293
0000798AlbiteHarlow G E, Brown G E (1980) Low albite: An X-Ray and neutron diffraction study American Mineralogist 65 986-99519800293
0000799AlbiteHarlow G E, Brown G E (1980) Low albite: An X-Ray and neutron diffraction study American Mineralogist 65 986-99519800293
0000800AlbiteHarlow G E, Brown G E (1980) Low albite: An X-Ray and neutron diffraction study American Mineralogist 65 986-99519800293
0001015AlbiteSmith J V, Artioli G (1986) Low albite, NaAlSi3O8: Neutron diffraction study of crystal structure at 13 K American Mineralogist 71 727-7331986Amelia, Virginia, USA013
0001285AlbiteArmbruster T, Burgi H B, Kunz M, Gnos E, Bronnimann S, Lienert C (1990) Variation of displacement parameters in structure refinements of low albite American Mineralogist 75 135-1401990Roc Tourne, France0293
0001682AlbiteDowns R T, Hazen R M, Finger L W (1994) The high-pressure crystal chemistry of low albite and the origin of the pressure dependency of Al-Si ordering American Mineralogist 79 1042-105219940293
0001683AlbiteDowns R T, Hazen R M, Finger L W (1994) The high-pressure crystal chemistry of low albite and the origin of the pressure dependency of Al-Si ordering American Mineralogist 79 1042-105219940293
0001684AlbiteDowns R T, Hazen R M, Finger L W (1994) The high-pressure crystal chemistry of low albite and the origin of the pressure dependency of Al-Si ordering American Mineralogist 79 1042-105219940.44293
0001685AlbiteDowns R T, Hazen R M, Finger L W (1994) The high-pressure crystal chemistry of low albite and the origin of the pressure dependency of Al-Si ordering American Mineralogist 79 1042-105219941.22293
0001686AlbiteDowns R T, Hazen R M, Finger L W (1994) The high-pressure crystal chemistry of low albite and the origin of the pressure dependency of Al-Si ordering American Mineralogist 79 1042-105219942.68293
0001687AlbiteDowns R T, Hazen R M, Finger L W (1994) The high-pressure crystal chemistry of low albite and the origin of the pressure dependency of Al-Si ordering American Mineralogist 79 1042-105219943.78293
0002264AlbiteMeneghinello E, Alberti A, Cruciani G (1999) Order-disorder process in the tetrahedral sites af albite American Mineralogist 84 1144-11511999Stintino, Sardinia, Italy0293
0002265AlbiteMeneghinello E, Alberti A, Cruciani G (1999) Order-disorder process in the tetrahedral sites af albite American Mineralogist 84 1144-11511999Stintino, Sardinia, Italy0293
0002266AlbiteMeneghinello E, Alberti A, Cruciani G (1999) Order-disorder process in the tetrahedral sites af albite American Mineralogist 84 1144-11511999Stintino, Sardinia, Italy0293
0002267AlbiteMeneghinello E, Alberti A, Cruciani G (1999) Order-disorder process in the tetrahedral sites af albite American Mineralogist 84 1144-11511999Stintino, Sardinia, Italy0293
0002268AlbiteMeneghinello E, Alberti A, Cruciani G (1999) Order-disorder process in the tetrahedral sites af albite American Mineralogist 84 1144-11511999Stintino, Sardinia, Italy0293
0002269AlbiteMeneghinello E, Alberti A, Cruciani G (1999) Order-disorder process in the tetrahedral sites af albite American Mineralogist 84 1144-11511999Stintino, Sardinia, Italy0293
0002270AlbiteMeneghinello E, Alberti A, Cruciani G (1999) Order-disorder process in the tetrahedral sites af albite American Mineralogist 84 1144-11511999Stintino, Sardinia, Italy0293
0002271AlbiteMeneghinello E, Alberti A, Cruciani G (1999) Order-disorder process in the tetrahedral sites af albite American Mineralogist 84 1144-11511999Stintino, Sardinia, Italy0293
0003798AlbiteBenusa M D, Angel R J, Ross N L (2005) Compression of albite, NaAlSi3O8 American Mineralogist 90 1115-112020056.489293
0003799AlbiteBenusa M D, Angel R J, Ross N L (2005) Compression of albite, NaAlSi3O8 American Mineralogist 90 1115-112020058.411293
0003800AlbiteBenusa M D, Angel R J, Ross N L (2005) Compression of albite, NaAlSi3O8 American Mineralogist 90 1115-112020059.431293
0006422AlbiteKroll H, Flogel J, Breit U, Lons J, Pentinghaus H (1991) Order and anti-order in Ge-substituted alkali feldspars European Journal of Mineralogy 3 739-74919910293
0006423AlbiteKroll H, Flogel J, Breit U, Lons J, Pentinghaus H (1991) Order and anti-order in Ge-substituted alkali feldspars European Journal of Mineralogy 3 739-74919910293
0006424AlbiteKroll H, Flogel J, Breit U, Lons J, Pentinghaus H (1991) Order and anti-order in Ge-substituted alkali feldspars European Journal of Mineralogy 3 739-74919910293
0019658AlbitePhillips M W, Colville A A, Ribbe P H (1971) The crystal structures of two oligoclases: a comparison with low and high albite Zeitschrift fur Kristallographie 133 43-651971Camedo, Switzerland0293
0019659AlbitePhillips M W, Colville A A, Ribbe P H (1971) The crystal structures of two oligoclases: a comparison with low and high albite Zeitschrift fur Kristallographie 133 43-651971Camedo, Switzerland0293
0012863AlbiteGualtieri A F (2000) Accuracy of XRPD QPA using the combined Rietveld-RIR method Journal of Applied Crystallography 33 267-2782000Baveno, Novara, Italy0293
0019662AnorthiteWenk H R, Joswig W, Tagai T, Korekawa M, Smith B K (1980) The average structure of An 62-66 labradorite American Mineralogist 65 81-951980Surtsey, Iceland0293
0019663AnorthiteWenk H R, Joswig W, Tagai T, Korekawa M, Smith B K (1980) The average structure of An 62-66 labradorite American Mineralogist 65 81-951980Surtsey, Iceland0293
0019664AnorthiteWenk H R, Joswig W, Tagai T, Korekawa M, Smith B K (1980) The average structure of An 62-66 labradorite American Mineralogist 65 81-951980Lake County, Oregon, USA0293
0019665AnorthiteWenk H R, Joswig W, Tagai T, Korekawa M, Smith B K (1980) The average structure of An 62-66 labradorite American Mineralogist 65 81-951980Lake County, Oregon, USA0293
0019666AnorthiteWenk H R, Joswig W, Tagai T, Korekawa M, Smith B K (1980) The average structure of An 62-66 labradorite American Mineralogist 65 81-951980Gordemo, Verzasca Valley, Switzerland0293
0019667AnorthiteWenk H R, Joswig W, Tagai T, Korekawa M, Smith B K (1980) The average structure of An 62-66 labradorite American Mineralogist 65 81-951980Sissone, Bergell Alps, Switzerland0293
0000370AnorthiteFoit F F, Peacor D R (1973) The anorthite crystal structure at 410 and 830 C American Mineralogist 58 665-67519730683
0000371AnorthiteFoit F F, Peacor D R (1973) The anorthite crystal structure at 410 and 830 C American Mineralogist 58 665-675197301103
0001194AnorthiteAngel R J (1988) High-pressure structure of anorthite American Mineralogist 73 1114-11191988Val Pasmeda, Austria0293
0001195AnorthiteAngel R J (1988) High-pressure structure of anorthite American Mineralogist 73 1114-11191988Val Pasmeda, Austria2.5293
0001196AnorthiteAngel R J (1988) High-pressure structure of anorthite American Mineralogist 73 1114-11191988Val Pasmeda, Austria3.1293
0001286AnorthiteAngel R J, Carpenter M A, Finger L W (1990) Structural variation associated with compositional variation and order-disorder behavior in anorthite-rich feldspars American Mineralogist 75 150-1621990Val Pasmeda, Austria0293
0001287AnorthiteAngel R J, Carpenter M A, Finger L W (1990) Structural variation associated with compositional variation and order-disorder behavior in anorthite-rich feldspars American Mineralogist 75 150-1621990Monte Somma, Italy0293
0001288AnorthiteAngel R J, Carpenter M A, Finger L W (1990) Structural variation associated with compositional variation and order-disorder behavior in anorthite-rich feldspars American Mineralogist 75 150-1621990Monte Somma, Italy0293
0001289AnorthiteAngel R J, Carpenter M A, Finger L W (1990) Structural variation associated with compositional variation and order-disorder behavior in anorthite-rich feldspars sample #115082a American Mineralogist 75 150-1621990South of Blantyre, Nyasalad (Malawi)0293
0020104AnorthiteWadoski-Romeijn E, Armbruster T (2013) Topotactic transformation and dehydration of the zeolite gismondine to a novel Ca feldspar structure American Mineralogist 98 1988-19972013Rio Pian del Foco, Genova province, Italy0623
0006694AnorthiteMatsui T, Kimata M (1997) Crystal chemistry of synthetic Mn-bearing anorthite: Incorporation of MnAl2Si2O8 end-member into feldspar European Journal of Mineralogy 9 333-34419970293
0019668AnorthiteFacchinelli A, Bruno E, Chiari G (1979) The structure of bytownite quenched from 1723 K Acta Crystallographica B35 34-421979satellite dyke, Traversella stock, Sesia Lanzo zone, Western Alps, Italy0293
0019669AnorthiteFacchinelli A, Bruno E, Chiari G (1979) The structure of bytownite quenched from 1723 K Acta Crystallographica B35 34-421979satellite dyke, Traversella stock, Sesia Lanzo zone, Western Alps, Italy0293
0010723AnorthiteWainwright J, Starkey J (1971) A refinement of the structure of anorthite _cod_database_code 1000034 Zeitschrift fur Kristallographie 133 75-8419710293
0020640AnorthiteChiari G, Benna P, Bruno E (1984) The structure of bytownite (An85). A new refinement Zeitschrift fur Kristallographie 169 35-491984Traversella stock, Sesia Lanzo zone, Western Alps, Italy0293
0020641AnorthiteChiari G, Benna P, Bruno E (1984) The structure of bytownite (An85). A new refinement Zeitschrift fur Kristallographie 169 35-491984Traversella stock, Sesia Lanzo zone, Western Alps, Italy0293
0016634AnorthiteKlein S, Korekawa M (1976) Die gemittelte Struktur des Labradorits _cod_database_code 1008757 Neues Jahrbuch fur Mineralogie, Monatshefte 1976 66-6919760293
CIF Raw Data - click here to close

Synonyms of PlagioclaseHide

Varieties of PlagioclaseHide

Barium-AlbiteFeldspar group. A variety of Plagioclase with Albite 44%, Anorthite 42% and Celsian 14%.

Originally reported from Kaso Mine, Kanuma, Tochigi Prefecture, Kanto Region, Honshu Island, Japan.

Relationship of Plagioclase to other SpeciesHide

Member of:
Feldspar Group
Other Members of Feldspar Group:
Alkali FeldsparA subgroup of the Feldspar Group, poor in calcium, and mostly rich in potassium.
Buddingtonite(NH4)(AlSi3O8)Mon. 2 : P21
CelsianBa(Al2Si2O8)Mon. 2/m
FilatoviteK(Al,Zn)2(As,Si)2O8Mon. 2/m
HexacelsianBaAl2Si2O8Hex. 6/mmm (6/m 2/m 2/m) : P63/mcm
KokchetaviteK(AlSi3O8)Hex. 6/mmm (6/m 2/m 2/m) : P6/mcc
KumdykoliteNa(AlSi3O8)Orth. mmm (2/m 2/m 2/m) : Pnnm
ParacelsianBa(Al2Si2O8)Mon. 2/m : P21/b
ReedmergneriteNaBSi3O8Tric. 1 : P1
SlawsoniteSr(Al2Si2O8)Mon. 2/m : P21/b
SvyatoslaviteCa(Al2Si2O8)Mon. 2 : P21
Unnamed (New Ordered Member of the Alkali Feldspar Series)KNa(Si6Al2)O16Mon. m
Plagioclase Members:
Albite Na(AlSi3O8)Tric. 1
Anorthite Ca(Al2Si2O8)Tric. 1 : P1
Minerals structurally related to group:
Alkali FeldsparA subgroup of the Feldspar Group, poor in calcium, and mostly rich in potassium.
Minerals chemically related to group:
Alkali FeldsparA subgroup of the Feldspar Group, poor in calcium, and mostly rich in potassium.

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.

Plagioclase in petrologyHide

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

Internet Links for PlagioclaseHide

References for PlagioclaseHide

Reference List:
Karl, F. (1954) Über Hoch-und Tieftemperaturoptik von Plagioklasen und deren petrographische und geologische Auswertung am Beispiel einiger alpiner Ergußgesteine. Tschermaks Mineralogische und Petrographische Mitteilungen, 4 (1). 320-328 doi:10.1007/bf01140403
Snetsinger, Kenneth G. (1967) High-alumina allophane as a weathering product of plagioclase. American Mineralogist, 52 (1-2) 254-262
Dickson, F.W. (1968) Growth of K-feldspars and plagioclase by replacement processes in rock of the Papoose Flat pluton and in country rocks, Inyo Mountains, California. Geological Society of America Special Papers 101, Abstract for 1966: 53-54
MacKenzie, W.S., Zussman, J., editors (1974) The Feldspars. Manchester University Press, U.K.
Smith, Robert K., Lofgren, Gary E. (1983) An analytical and experimental study of zoning in plagioclase. Lithos, 16 (2) 153-168 doi:10.1016/0024-4937(83)90012-9
Bohn, Hinrich L., Kittrick, James A. (1984) Stability diagram of Ca-Na-K-plagioclase with authigenic minerals. Chemical Geology, 43 (1-2). 181-186 doi:10.1016/0009-2541(84)90147-5
Carpenter, M.A., McConnell, J.D.C., Navrotsky, A. (1985) Enthalpies of ordering in the plagioclase feldspar solid solution. Geochimica et Cosmochimica Acta, 49 (4) 947-966 doi:10.1016/0016-7037(85)90310-2
Salje, E., Kuscholke, B., Wruck, B., Kroll, H. (1985) Thermodynamics of sodium feldspar II: Experimental results and numerical calculations. Physics and Chemistry of Minerals, 12 (2) 99-107 doi:10.1007/bf01046834
Redfern, Simon A. T., Salje, Ekhard (1987) Thermodynamics of plagioclase II: Temperature evolution of the spontaneous strain at the I-1 - P-1 phase transition in anorthite. Physics and Chemistry of Minerals, 14 (2). 189-195 doi:10.1007/bf00308224
Salje, E. (1987) Thermodynamics of plagioclase I: theory of the I1‟ - P1‟ phase transition in anorthite and Ca-rich plagioclases. Physics and Chemistry of Minerals: 14: 181-188.
Redfern, S.A.T., Graaeme-Barber, A., Salje, E. (1988) Thermodynamics of plagioclase III: spontaneous strain at the I1‟ - P1‟ phase transition in Ca-rich plagioclase. Physics and Chemistry of Minerals: 16: 157-163.
Redfern, S.A.T. (1992) The effect of Al/Si disorder on the I1‟ - P1‟ co-elastic phase transition in Ca-rich plagioclase. Physics and Chemistry of Minerals: 19: 246-254.
Weinbruch, S., MĂŒller, W.F. (1995) Constraints on the cooling rates of chondrules from the microstructure of clinopyroxene and plagioclase. Geochimica et Cosmochimica Acta: 59: 3221-3230.
Lee, Martin R., Thompson, Pauline, Poeml, Philipp, Parsons, Ian (2003) Peristeritic plagioclase in North Sea hydrocarbon reservoir rocks: Implications for diagenesis, provenance and stratigraphic correlation. American Mineralogist, 88 (5) 866-875 doi:10.2138/am-2003-5-616
Angel, R.J. (2004) Equations of state of plagioclase feldspars. Contributions to Mineralogy and Petrology: 146: 506-512.
Moreira de Oliveira Jr, Montauban, Eon, Jean-Guillaume (2024) Maximal independence and symmetry in crystal chemistry of natural tectosilicates. Acta Crystallographica Section A Foundations and Advances, 80 (1). 52-64 doi:10.1107/s2053273323008665

Significant localities for PlagioclaseHide

Showing 41 significant localities out of 25,511 recorded on mindat.org.

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. ⓘ - 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
 
  • Eastern Antarctica
    • Victoria Land
      • Ross Archipelago
        • Ross Island
[Albite var: Anorthoclase] Dov Bahat (1979) +2 other references
Bolivia
 
  • Cochabamba
    • Chapare Province
Petrov (n.d.)
Canada
 
  • Newfoundland and Labrador
    • Labrador
      • Nain Complex
        • Paul Island
[Anorthite var: Labradorite] Dana et al. (1892)
  • QuĂ©bec
    • Abitibi-TĂ©miscamingue
      • La VallĂ©e-de-l'Or RCM
        • RĂ©servoir-Dozois
[Albite var: Oligoclase] Age of the Cabonga nepheline syenite +3 other references
Colombia
 
  • Caldas Department
    • Salamina
[Albite var: Andesine] Tassinari et al. (2008)
France
 
  • Provence-Alpes-CĂŽte d'Azur
    • Alpes-de-Haute-Provence
      • Barcelonnette
        • Saint-Paul-sur-Ubaye
[Albite] Piccoli (2002) +1 other reference
      • Forcalquier
        • Saint-Maime
[Anorthite] Favreau G. et al. (2004)
Germany
 
  • Lower Saxony
    • Goslar District
      • Braunlage
        • St Andreasberg
[Albite] August Breithaupt (1843)
Italy
 
  • Campania
    • Metropolitan City of Naples
[Anorthite] Rose. G. (1823)
  • Piedmont
    • Metropolitan City of Turin
      • Fenestrelle
[Albite] Piccoli et al. (2007)
      • Usseaux
[Albite] Giacomino et al. (1986) +1 other reference
  • Sicily
    • Trapani Province
[Albite var: Anorthoclase] [Foerstner] Förstner H. (1877) +18 other references
Spain
 
  • Community of Madrid
[Albite] Garcia G. et al. (2004)
Sweden
 
  • Dalarna County
    • Falun
[Albite] Gahn et al. (1815) +1 other reference
  • Stockholm County
    • Stockholm
[Albite var: Oligoclase] Clark (1993)
Switzerland
 
  • Valais
    • Entremont
      • Val de Bagnes
        • Verbier
[Albite] Erik Vercammen photo & specimen (Bought at the Fiesch-show in 2003)
USA
 
  • California
    • San Diego County
      • Pala Mining District
        • Pala
          • Chief Mountain
            • Elizabeth R. Mine (Hazel W. claim)
[Albite] Mauthner (2008)
  • Colorado
    • Gunnison County
      • Willow Creek Mining District
[Albite var: Cleavelandite] The Williamson Southern Group National ...
  • Connecticut
    • Fairfield County
      • Redding (Reading)
        • Branchville
[Albite] Cameron et al (1954) +2 other references
      • Trumbull
        • Long Hill
[Albite] Moritz (n.d.)
[Albite] Hobbs (1901) +2 other references
    • Litchfield County
      • Litchfield
[Albite] Brunet (1977)
      • Plymouth
[Albite] Former Ed Force collection.
    • Middlesex County
      • East Hampton (Chatham)
[Albite var: Cleavelandite] Shannon (1920) +1 other reference
      • Haddam
        • Haddam Neck
[Albite] Bowman (1902) +2 other references
[Albite] Yedlin (1967)
[Albite] Foye (1922)
      • Portland
        • Collins Hill
          • Strickland pegmatite
[Albite] USGS Professional Paper 255: 333-338. +3 other references
    • Tolland County
      • Union
[Albite] Bartsch (1940)
  • Massachusetts
    • Bristol County
      • Acushnet
[Albite] Cahoon (2005)
    • Hampshire County
      • Chesterfield
[Albite var: Cleavelandite] "Western Massachusetts Mineral ... +1 other reference
  • New Mexico
    • Otero County
[Albite] D.Court collection
  • Oregon
    • Harney County
[Labradorite var: Oregon Sunstone] ‘David Carter’ Ex-collection +2 other references
  • Rhode Island
    • Washington County
      • Westerly
        • Bradford
[Albite] Miller (1971)
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