Dundasite
A valid IMA mineral species - grandfathered
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About Dundasite
Historic view of Dundas township
Dundas mineral field, Zeehan mining district, West Coast municipality, Tasmania, Australia
Dundas mineral field, Zeehan mining district, West Coast municipality, Tasmania, Australia
Formula:
PbAl2(CO3)2(OH)4 · H2O
Colour:
White to colourless to very pale blue; rarely pale greenish or pale yellowish
Lustre:
Vitreous, Silky
Hardness:
2
Specific Gravity:
3.1 - 3.55
Crystal System:
Orthorhombic
Member of:
Name:
Named in 1893 by William Frederick Petterd after the type locality, Dundas, Tasmania, Australia.
Dundasite is a secondary lead mineral found in the oxidization zone of lead deposits.
Unique Identifiers
Mindat ID:
1330
Long-form identifier:
mindat:1:1:1330:3
IMA Classification of Dundasite
Approved, 'Grandfathered' (first described prior to 1959)
First published:
1893
Type description reference:
Classification of Dundasite
5.DB.10
5 : CARBONATES (NITRATES)
D : Carbonates with additional anions, with H2O
B : With large and medium-sized cations
5 : CARBONATES (NITRATES)
D : Carbonates with additional anions, with H2O
B : With large and medium-sized cations
16b.2.1.1
16b : HYDRATED CARBONATES CONTAINING HYDROXYL OR HALOGEN
2 : AmBn(XO3)pZqxH2O & with (m+n):p = 3:2
16b : HYDRATED CARBONATES CONTAINING HYDROXYL OR HALOGEN
2 : AmBn(XO3)pZq
11.9.3
11 : Carbonates
9 : Carbonates of Pb, Zr and Th
11 : Carbonates
9 : Carbonates of Pb, Zr and Th
Mineral Symbols
As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.
| Symbol | Source | Reference |
|---|---|---|
| Dun | IMA–CNMNC | Warr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43 |
Pronunciation of Dundasite
Pronunciation:
| Play | Recorded by | Country |
|---|---|---|
| Jolyon Ralph | United Kingdom |
Physical Properties of Dundasite
Vitreous, Silky
Transparency:
Transparent
Colour:
White to colourless to very pale blue; rarely pale greenish or pale yellowish
Comment:
Bluish hue due to trace amounts of Cu(II).
Streak:
White
Hardness:
2 on Mohs scale
Cleavage:
Perfect
On {010}.
On {010}.
Density:
3.1 - 3.55 g/cm3 (Measured) 3.716 g/cm3 (Calculated)
Optical Data of Dundasite
Type:
Biaxial (-)
RI values:
nα = 1.603 nβ = 1.716 nγ = 1.750
2V:
Measured: 30° to 40°, Calculated: 54°
Max. Birefringence:
δ = 0.147
Based on recorded range of RI values above.
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 µm 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.
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 µm 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:
strong
Chemistry of Dundasite
Mindat Formula:
PbAl2(CO3)2(OH)4 · H2O
Element Weights:
Crystallography of Dundasite
Crystal System:
Orthorhombic
Class (H-M):
mmm (2/m 2/m 2/m) - Dipyramidal
Cell Parameters:
a = 9.08(1) Å, b = 16.37(2) Å, c = 5.62(1) Å
Ratio:
a:b:c = 0.555 : 1 : 0.343
Unit Cell V:
835.35 ų (Calculated from Unit Cell)
Z:
4
Morphology:
Spherical aggregates composed of radiating crystals, elongated [001]; matted or felted crusts.
Comment:
Space Group: P bnm
Crystal Structure
Load
Unit Cell | Unit Cell Packed
2x2x2 | 3x3x3 | 4x4x4
Unit Cell | Unit Cell Packed
2x2x2 | 3x3x3 | 4x4x4
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Data courtesy of the American Mineralogist Crystal Structure Database. Click on an AMCSD ID to view structure
| ID | Species | Reference | Link | Year | Locality | Pressure (GPa) | Temp (K) |
|---|---|---|---|---|---|---|---|
| 0014455 | Dundasite | Cocco G, Fanfani L, Nunzi A, Zanazzi P F (1972) The crystal structure of dundasite Mineralogical Magazine 38 564-569 |  | 1972 | Gonnesa, Sardinia, Italy | 0 | 293 |
CIF Raw Data - click here to close
X-Ray Powder Diffraction
Powder Diffraction Data:
| d-spacing | Intensity |
|---|---|
| 7.91 Å | (100) |
| 4.63 Å | (50) |
| 3.60 Å | (80) |
| 3.23 Å | (50) |
| 3.08 Å | (60) |
| 2.968 Å | (40) |
| 2.667 Å | (50) |
Geological Environment
Paragenetic Mode(s):
| Paragenetic Mode | Earliest Age (Ga) |
|---|---|
| Stage 7: Great Oxidation Event | <2.4 |
| 47a : [Near-surface hydration of prior minerals] | |
| 47c : [Carbonates, phosphates, borates, nitrates] |
Geological Setting:
Oxidized zones of lead-bearing deposits.
Type Occurrence of Dundasite
Place of Conservation of Type Material:
No designated type material.
Associated Minerals at Type Locality:
Other Language Names for Dundasite
Relationship of Dundasite to other Species
Member of:
Other Members of Dresserite Group:
| Alumohydrocalcite | CaAl2(CO3)2(OH)4 · 4H2O | Tric. 1 : P1 |
| Dresserite | BaAl2(CO3)2(OH)4 · H2O | Orth. mmm (2/m 2/m 2/m) |
| Grguricite | CaCr2(CO3)2(OH)4 · 4H2O | Tric. 1 : P1 |
| Hydrodresserite | BaAl2(CO3)2(OH)4 · 3H2O | Tric. 1 : P1 |
| Kochsándorite | CaAl2(CO3)2(OH)4 · H2O | Orth. mmm (2/m 2/m 2/m) : Pnma |
| Petterdite | PbCr3+2(CO3)2(OH)4 · H2O | Orth. mmm (2/m 2/m 2/m) |
| Strontiodresserite | SrAl2(CO3)2(OH)4 · H2O | Orth. mmm (2/m 2/m 2/m) |
| Unnamed (Ca-analogue of Petterdite) | CaCr3+2(CO3)2(OH)4 · H2O |
Common Associates
Associated Minerals Based on Photo Data:
| 97 photos of Dundasite associated with Crocoite | PbCr6+O4 |
| 53 photos of Dundasite associated with Cerussite | PbCO3 |
| 30 photos of Dundasite associated with Azurite | Cu3(CO3)2(OH)2 |
| 26 photos of Dundasite associated with Gibbsite | Al(OH)3 |
| 22 photos of Dundasite associated with Malachite | Cu2(CO3)(OH)2 |
| 14 photos of Dundasite associated with Allophane | (Al2O3)(SiO2)1.3-2 · 2.5-3H2O |
| 11 photos of Dundasite associated with Chrome-Cerussite | PbCO3 |
| 9 photos of Dundasite associated with Limonite | |
| 8 photos of Dundasite associated with Pyromorphite | Pb5(PO4)3Cl |
| 7 photos of Dundasite associated with Quartz | SiO2 |
Related Minerals - Strunz-mindat Grouping
| 5.DB. | Grguricite | CaCr2(CO3)2(OH)4 · 4H2O |
| 5.DB.05 | Para-alumohydrocalcite | CaAl2(CO3)2(OH)4 · 6H2O |
| 5.DB.05 | Nasledovite | PbMn3Al4(CO3)4(SO4)O5 · 5H2O |
| 5.DB.05 | UM1977-02-CO:AlCaH | Ca6Al2(CO3)3O6 · 32H2O |
| 5.DB.05 | Alumohydrocalcite | CaAl2(CO3)2(OH)4 · 4H2O |
| 5.DB.10 | Kochsándorite | CaAl2(CO3)2(OH)4 · H2O |
| 5.DB.10 | Dresserite | BaAl2(CO3)2(OH)4 · H2O |
| 5.DB.10 | Unnamed (Ca-analogue of Petterdite) | CaCr3+2(CO3)2(OH)4 · H2O |
| 5.DB.10 | Petterdite | PbCr3+2(CO3)2(OH)4 · H2O |
| 5.DB.10 | Strontiodresserite | SrAl2(CO3)2(OH)4 · H2O |
| 5.DB.10 | Montroyalite | Sr4Al8(CO3)3(OH,F)26 · 10-11H2O |
| 5.DB.15 | Hydrodresserite | BaAl2(CO3)2(OH)4 · 3H2O |
| 5.DB.20 | Schuilingite-(Nd) | PbCu(Nd,Gd,Sm,Y)(CO3)3(OH) · 1.5H2O |
| 5.DB.25 | Sergeevite | Ca2Mg11(CO3)9(HCO3)4(OH)4 · 6H2O |
| 5.DB.30 | Szymańskiite | [H3O]+8[Hg2]2+8(Ni,Mg)6[CO3]12(OH)12 · 3H2O |
| 5.DB.35 | Lusernaite-(Y) | Y4Al(CO3)2(OH)10F · 6H2O |
| 5.DB.40 | Putnisite | SrCa4Cr3+8(CO3)8SO4(OH)16 · 23H2O |
Other Information
Notes:
Soluble in acids with effervescence.
Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.
Internet Links for Dundasite
mindat.org URL:
https://www.mindat.org/min-1330.html
Please feel free to link to this page.
Please feel free to link to this page.
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External Links:
Mineral Dealers:
References for Dundasite
Reference List:
Prior, G. T. (1906) Dundasite from North Wales. Mineralogical Magazine and Journal of the Mineralogical Society, 14 (65) 167-169 doi:10.1180/minmag.1906.014.65.08
Russell, Arthur (1912) Notes on the occurrence of Dundasite in Derbyshire and Co. Galway. Mineralogical Magazine and Journal of the Mineralogical Society, 16 (76) 272-273 doi:10.1180/minmag.1912.016.76.03
Russell, Arthur (1944) Notes on some minerals either new or rare to Britain. Mineralogical Magazine and Journal of the Mineralogical Society, 27 (184) 1-10 doi:10.1180/minmag.1944.027.184.02
Beaumont, C., Guillemin, Claude (1960) La dundasite de Gonnesa (Sardaigne) Bulletin de Minéralogie, 83 (4) 121-124 doi:10.3406/bulmi.1960.5391
Jambor, J. L., Fong, D. G., Sabina, A. P. (1969) Dresserite, the new barium analogue of dundasite. The Canadian Mineralogist, 10 (1) 84-89
Cocco, G., Fanfani, L, Nunzi, A., Zanazzi, P. F. (1972) The crystal structure of dundasite. Mineralogical Magazine, 38 (297) 564-569 doi:10.1180/minmag.1972.038.297.04
Localities for Dundasite
symbol to view information about a locality.
The Locality List
- 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).
All localities listed without proper references should be considered as questionable.
Australia | |
| Leverett et al. (2007) |
| Dana (1909) +1 other reference |
| N.R. Kemp and R.S. Bottrill : ... |
| Bottrill et al. (2006) | |
| [Canadian Mineralogist 38 pp. 1467-1476 (2000) +1 other reference | |
| Peter Andersen collection | |
| Bottrill et al. (2006) |
Austria | |
| Niedermayr et al. (1995) |
| G.Blaß |
| Carinthia II 168./88. (1978) +1 other reference | |
| Niedermayr et al. (1995) |
| Niedermayr et al. (1995) |
| |
| Strasser (1989) | |
| Niedermayr et al. (2009) | |
| Auer (2023) |
| Leikauf et al. (2005) |
| Schebesta (1992) |
| Postl et al. (1990) +1 other reference |
Belgium | |
| Van Tassel (1979) +1 other reference |
| Van Tassel (1979) +1 other reference | |
| Van Tassel (1979) +1 other reference |
| Michel BLONDIEAU et al. (2018) |
| Blondieau et al. (2016) |
| Hatert et al. (2002) |
| Michel Arliguie collection. +2 other references | |
| Dejonghe et al. (1993) | |
Canada | |
| Dawson Creek +1 other reference |
| Dawson Creek +1 other reference | |
China | |
| RRUFF Project Database (ID R060889) |
Czech Republic | |
| Fojt |
| Kuttna +1 other reference |
| Pauliš | |
France | |
| Vernay (1997) |
| Yves Mourey Collection |
| Wittern et al. (1997) |
| Legrand et al. (2008) |
| Berbain et al. (2005) |
| |
| Queneau (n.d.) |
| Queneau (n.d.) |
| Queneau (n.d.) |
| van den Berg (1987) +1 other reference |
Germany | |
| Schnorrer-Köhler (1988) |
| Weiß (1990) |
| Wittern et al. (1986) |
| Schnorrer-Köhler (1988) |
| |
| Schnorrer-Köhler (1991) | |
| Wittern (2001) |
| Meinrad Kempf Collection | |
| Schnorrer-Köhler (1987) |
| Habel et al. (2009) |
| Weiß (1990) |
| Wittern (2001) |
| Der Aufschluss Vol.55 |
| Weiß (1990) |
Greece | |
| Meixner (1978) +2 other references |
Hungary | |
| Sándor et al. (2005) |
| Sándor et al. (2005) | |
Ireland | |
| Palache et al. (1951) |
| Morrissey (1970) |
| Anders Errson Collection |
Italy | |
| Bortolozzi et al. (2018) |
| Castellaro-Kampf |
| Maida (2002) |
| Orlandi et al. (2005) +1 other reference | |
| Carmagnola et al. (2019) |
| AA. VV. et al. (1) |
| Moldovan et al. (2013) |
| Stara et al. (1996) |
| Stara et al. (1996) | |
| Orlandi (2011) |
| De Michele (1974) |
| Stara et al. (1996) | |
| Cerussite-5mm-Seddas Moddizzis Mine | |
| Lecca et al. (2024) |
| L. Chiappino collection |
| Ferretti et al. (2018) |
| Sabelli C. et al. (1996) |
| Rögner et al. (2000) |
| Borselli et al. (2025) |
| Boscardin M. et alii. "I minerali nel Vicentino" et al. (Vicenza) |
| Lapis (2) +2 other references |
| Bortolozzi (n.d.) | |
| Antonio Zordan collection | |
| XRD single crystal analysis at Padova ... | |
Morocco | |
| Steve Rust collection |
Namibia | |
| Gebhard (1999) |
New Zealand | |
| Railton et al. (1990) |
Saudi Arabia | |
| Faheha et al. (2012) |
Slovakia | |
| Števko M. (2014) |
Spain | |
| Calvo Rebollar (2012) |
| Joan Rosell et al. (2022) |
| Xavi Ortiz Collection |
| Adrian Pesudo collection. Analyssed by ... |
Switzerland | |
| EDXS analysis EDXPR_2844 |
UK | |
| Day (1999) |
| Elton et al. (2004) |
| Tony Aldworth Collection/Chris Jewson ... +1 other reference |
| Golley et al. (1995) |
| G.Curtis collection. |
| Palache et al. (1951) |
| John Betterton at Haslemere Educational ... |
| Golley et al. (1995) |
| Steve Rust collection | |
| Palache et al. (1951) +1 other reference |
| Day (1999) |
| Day (1999) |
| [Specimen in the Natural History Museum +2 other references |
| Alabaster (1990) +1 other reference |
| Turner R.W. and Rumsey (2007) +1 other reference |
| |
| Day (1999) |
| Day (1999) |
| Dana 6:A2:37. |
| Cotterell et al. (2011) |
USA | |
| Castor et al. (2004) |
| John Cianciulli |
| Gibbs (1989) |
| Gibbs (1989) | |
| Gibbs (1989) | |
| White (1974) | |
| Ex. New Mexico Bereau of Mines and ... +1 other reference |
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Greystone Quarry, Lezant, Cornwall, England, UK