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Ustarasite Mineral Data
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General Ustarasite Information
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 Chemical Formula: |
Pb(Bi,Sb)6S10 |
| Composition: |
Molecular Weight = 1,738.13 gm |
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Bismuth 66.13 % Bi |
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Antimony 3.50 % Sb |
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Lead 11.92 % Pb |
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Sulfur 18.45 % S |
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______ |
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100.00 % |
| Empirical Formula: |
PbBi5.5Sb0.5S10 |
| Environment: |
In quartz-bismuthinite veins. |
| IMA Status: |
Valid Species (Pre-IMA) 1955 |
| Locality: |
Ustarasaisk deposit, western Tian-Shan, Kazakhstan. Link to MinDat.org Location Data. |
| Name Origin: |
Named for the locality. |
| Name Pronunciation: |
Ustarasite + Pronunciation  |
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Ustarasite Crystallography
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| Crystal System: |
Orthorhombic Space Group: Unk |
| X Ray Diffraction: |
By Intensity(I/Io): 1.057(1), 1.483(1), 3.527(1), |
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Physical Properties of Ustarasite
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| Cleavage: |
{???} Perfect |
| Color: |
Gray, Silver gray. |
| Diaphaneity: |
Opaque |
| Habit: |
Prismatic - Crystals Shaped like Slender Prisms (e.g. tourmaline). |
| Hardness: |
2.5 - Finger Nail |
| Luster: |
Metallic |
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Optical Properties of Ustarasite
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| RL Anisotrophism: |
Strong. |
| RL Color: |
Pure white. |
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Calculated Properties of Ustarasite
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| Fermion Index: |
Fermion Index = 0.02
Boson Index = 0.98 |
| Photoelectric: |
PEUstarasite =1,510.60 barns/electron
U=PEUstarasite x rElectron Density= . barns/cc.
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| Radioactivity: |
GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Ustarasite is Not Radioactive |
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Ustarasite Classification
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| Dana Class: |
03.08.11.01 (03)Sulfides - Sulfosalts |
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(03.08)where 1 < z/y <2 - (A+)i (A++)j [By Cz], A=metals, B=semi-metals, C=non-metals |
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(03.08.11)Dana Group |
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03.08.11.01 Ustarasite Pb(Bi,Sb)6S10 Unk Ortho |
| Strunz Class: |
02.JB.40e 02 - SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulf |
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02.J - Sulfosalts of PbS Archetype |
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02.JB -Galena derivatives, with Pb |
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02.JB.40e Ustarasite Pb(Bi,Sb)6S10 Unk Ortho |
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Other Ustarasite Information
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| References: |
NAME( Dana8) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(AntBidBlaNic1) |
| See Also: |
Links to other databases for Ustarasite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - EUROmin Project
4 - Ecole des Mines de Paris
5 - GeoScienceWorld
6 - Google Images
7 - Google Scholar
8 - Handbook of Mineralogy (MinSocAm)
9 - Handbook of Mineralogy (UofA)
10 - MinDAT
11 - Mineralienatlas (Deutsch)
12 - Online Mineral Museum
13 - QUT Mineral Atlas
14 - Ruff.Info
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Print or Cut-and-Paste your Ustarasite Specimen Label here :
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Ustarasite
Pb(Bi,Sb)6S10
Dana No: 03.08.11.01 Strunz No: 02.JB.40e
Locality:
Notes:
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