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Olsacherite Mineral Data + |
General Olsacherite Information |
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| Pb2(SeO4)(SO4) | |||
| Molecular Weight = 653.42 gm | |||
| Lead 63.42 % Pb 68.32 % PbO | |||
| Selenium 12.08 % Se 19.43 % SeO3 | |||
| Sulfur 4.91 % S 12.25 % SO3 | |||
| Oxygen 19.59 % O | |||
| ______ ______ | |||
| 100.00 % 100.00 % = TOTAL OXIDE | |||
| Pb2(SeO4)(SO4) | |||
| Oxidation product of penroseite. | |||
| Approved IMA 1969 | |||
| Pacajake mine, Hiaco, Bolivia. Link to MinDat.org Location Data. | |||
| Named for Juan A. Olsacher (1903-1964), Argentine mineralogist, University of Cordoba. | |||
| Kerstenite | |||
| Selenolite | |||
Olsacherite Image | |||
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Olsacherite Crystallography |
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| a:b:c =0.7682:1:0.6386 | |||
| a = 8.42, b = 10.96, c = 7, Z = 4; V = 645.98 Den(Calc)= 6.72 | |||
| Orthorhombic - DisphenoidalH-M Symbol (2 2 2) Space Group: P 2212 | |||
| By Intensity(I/Io): 3.015(1), 3.234(1), 3.338(1), | |||
Mouse |
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Physical Properties of Olsacherite |
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| [101] Good, [010] Fair | |||
| Colorless. | |||
| 6.55 | |||
| Transparent to Translucent | |||
| Brittle - Generally displayed by glasses and most non-metallic minerals. | |||
| Acicular - Occurs as needle-like crystals. | |||
| 3-3.5 - Calcite-Copper Penny | |||
| Vitreous - Dull | |||
| white | |||
Optical Properties of Olsacherite |
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| CI meas= -0.016 (Superior) - where the CI = (1-KPDmeas/KC) CI calc= 0.009 (Superior) - where the CI = (1-KPDcalc/KC) KPDcalc= 0.1431,KPDmeas= 0.1468,KC= 0.1444 |
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| Biaxial (-), a=1.935, b=1.966, g=1.983, bire=0.0480, 2V(Calc)=72, 2V(Meas)=80. | |||
Calculated Properties of Olsacherite |
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relectron=5.72 gm/cc |
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| Fermion Index = 0.1498 Boson Index = 0.8502 |
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PEOlsacherite =1,154.50 barns/electron |
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| GRapi = 0 (Gamma Ray American Petroleum Institute Units) Olsacherite is Not Radioactive |
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Olsacherite Classification |
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| 32.1.3.1 (32)Compound Sulfates | |||
| (32.1)(anhydrous) with simple bi-anionic formula | |||
| (32.1.3)Dana Group | |||
| VI/B.13-20 VI - Sulfates,Chromates,Molybdates and Tungstates | |||
| VI/B - Waterfree sulfates [SO4]2- with unfamiliar anions. mostly big cations | |||
| VI/B.13 - Lanarkite - Susannite series | |||
Other Olsacherite Information |
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| NAME( Dana8) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Dana8) | |||
| Links to other databases for Olsacherite : 1 -Am. Min. Crystal Structure Database 2 -Athena 3 - EUROmin Project 4 -Google Images 5 -Google Scholar 6 -Handbook of Mineralogy (UofA) 7 -MinDAT 8 -MinMax(Deutsch) 9 -MinMax(English) 10 -Mineralienatlas (Deutsch) 11 -QUT Mineral Atlas 12 -École des Mines de Paris Search for Olsacherite using: Visit our Advertisers for Olsacherite : Translate Olsacherite Mineral Data : Ask about Olsacherite here : Print or Cut-and-Paste your Olsacherite Specimen Label here :
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