[Newest Minerals] [Rare Minerals] [Cabinet Specimens] [About Us] [Image Gallery] Dakota Matrix Minerals Updated weekly, for the collector, educator, and researcher since 1996 Extensive Inventory of very Rare Minerals. Visa and Mastercard are Welcome General Dundasite InformationPbAl2(CO3)2(OH)4•(H2O) |
Molecular Weight = 467.23 gm |
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Aluminum 11.55 % Al 21.82 % Al2O3 |
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Hydrogen 1.29 % H 11.57 % H2O |
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Lead 44.35 % Pb 47.77 % PbO |
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Carbon 5.14 % C 18.84 % CO2 |
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Oxygen 37.67 % O |
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100.00 % 100.00 % = TOTAL OXIDE |
PbAl2(CO3)2(OH)4•(H2O) |
Valid Species (Pre-IMA) 1893 |
Dundas and Mt. Read, Tasmania. Link to MinDat.org Location Data. |
Named after its locality. |
Dundasite + Pronunciation |
ICSD 9348 |
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PDF 21-936 |
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Dundasite Crystallographya:b:c =0.5535:1:0.3431 |
a = 9.05, b = 16.35, c = 5.61, Z = 4; V = 830.10 Den(Calc)= 3.74 |
Orthorhombic - DipyramidalH-M Symbol (2/m 2/m 2/m) Space Group: Pbmm |
By Intensity(I/Io): 7.91(1), 3.6(0.8), 3.09(0.6), |
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| Physical Properties of Dundasite{010} Perfect |
Sky blue, White, Light green. |
3.41 - 3.55, Average = 3.48 |
Transparent |
Acicular - Occurs as needle-like crystals. |
Radial - Crystals radiate from a center without producing stellar forms (e.g. stibnite) |
Spherical - Spherical, rounded aggregates. |
2 - Gypsum |
Vitreous - Silky |
white |
| Optical Properties of DundasiteCI meas= -0.055 (Good) - where the CI = (1-KPDmeas/KC) |
CI calc= 0.018 (Superior) - where the CI = (1-KPDcalc/KC) KPDcalc= 0.1843,KPDmeas= 0.1981,KC= 0.1878 Ncalc = 1.64 - 1.7 Biaxial (-), a=1.602, b=1.716, g=1.75, bire=0.1480, 2V(Calc)=54, 2V(Meas)=30-40. |
| Calculated Properties of DundasiteBulk Density (Electron Density)=3.43 gm/cc |
note: Specific Gravity of Dundasite =3.74 gm/cc. Fermion Index = 0.09 |
Boson Index = 0.91 PEDundasite = 743.64 barns/electron |
U=PEDundasite x rElectron Density=2,547.72 barns/cc. GRapi = 0 (Gamma Ray American Petroleum Institute Units) |
Dundasite is Not Radioactive | Dundasite Classification16b.02.01.01 (16b)Carbonates - Hydroxyl or Halogen |
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(16b.02)where (A)m (B)n (XO3)p Zq · x(H2O), with (m+n):p=3:2 |
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(16b.02.01)Dundasite Group |
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05.DB.10 05 - CARBONATES (NITRATES) |
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05.D - Carbonates with Additional Anions, with H2O |
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05.DB -With large and medium-sized cations |
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| Other Dundasite InformationNAME( Ford32) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990) |
Links to other databases for Dundasite : |
1 - Am. Min. Crystal Structure Database 2 - Amethyst Galleries' Mineral Gallery 3 - Athena 4 - EUROmin Project 5 - Ecole des Mines de Paris 6 - Google Images 7 - Google Scholar 8 - Handbook of Mineralogy (MinSocAm) 9 - Handbook of Mineralogy (UofA) 10 - MinDAT 11 - MinMax(Deutsch) 12 - MinMax(English) 13 - Mineralienatlas (Deutsch) 14 - QUT Mineral Atlas 15 - Ruff.Info 16 - WWW-MINCRYST Search for Dundasite using: Visit our Advertisers for Dundasite : AA Mineral SpecimensB & L Fine Minerals Crystalarium.com Dan Weinrich Fine Minerals Dan Weinrich Auctions Dakota Matrix Desert Winds Gems and Minerals Excalibur Minerals Exceptional Minerals Fabre Minerals Heliodor John Betts Fine Minerals Mason's Minerals Mineral News Mineral of the Month Club Wrights Rock Shop Translate Dundasite Mineral Data : Ask about Dundasite here : Print or Cut-and-Paste your Dundasite Specimen Label here :
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