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Anduoite Mineral Data |
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Anduoite Mineral Data |
General Anduoite Information |
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 Chemical Formula: |
(Ru,Os)As2 | ||
| Composition: |
Molecular Weight = 273.20 gm | ||
| Arsenic 54.85 % As | |||
| Osmium 17.41 % Os | |||
| Ruthenium 27.75 % Ru | |||
| ______ | |||
| 100.00 % | |||
| Empirical Formula: |
Ru0.75Os0.25As2 | ||
| Environment: |
Occurs in a chromium deposit related to augite peridotite and dunite. | ||
| IMA Status: |
Approved IMA 1979 | ||
| Locality: |
From Anduo, Tibet, China. Link to MinDat.org Location Data. | ||
| Name Origin: |
For the Chinese locality at Anduo. | ||
| Name Pronunciation: |
Anduoite  |
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| Synonym: |
ICSD 42738 | ||
| PDF 33-1144 | |||
Anduoite Image | |||
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Images:
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Anduoite Crystallography |
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| Axial Ratios: |
a:b:c =0.8717:1:0.485 | ||
| Cell Dimensions: |
a = 5.41, b = 6.206, c = 3.01, Z = 2; V = 101.06 Den(Calc)= 8.98 | ||
| Crystal System: |
Orthorhombic - Dipyramidal H-M Symbol (2/m 2/m 2/m) Space Group: Pnnm | ||
| X Ray Diffraction: |
By Intensity(I/Io): 1.92(1), 1.095(0.9), 1.501(0.9), | ||
Physical Properties of Anduoite |
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| Cleavage: |
None | ||
| Color: |
Lead gray. | ||
| Diaphaneity: |
Opaque | ||
| Fracture: |
Malleable - Deforms rather than breaking apart with a hammer. | ||
| Habit: |
Inclusions - Generally found as inclusions in other minerals. | ||
| Habit: |
Microscopic Crystals - Crystals visible only with microscopes. | ||
| Hardness: |
7 - Quartz | ||
| Luster: |
Metallic | ||
| Streak: |
grayish black | ||
Optical Properties of Anduoite |
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| RL Anisotrophism: |
Marked in air from brownish yellow to grayish green, pale red to pale green, pronounced in oil. | ||
| RL Color: |
White with pink tint. | ||
| RL Pleochroism: |
Noticeable in air, from pinkish grayish white to pinkish white, distinct in oil. | ||
Calculated Properties of Anduoite |
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| Electron Density: |
Bulk Density (Electron Density)=7.76 gm/cc note: Specific Gravity of Anduoite =8.98 gm/cc. |
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| Fermion Index: |
Fermion Index = 0.11 Boson Index = 0.89 |
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| Photoelectric: |
PEAnduoite = 336.17 barns/electron U=PEAnduoite x rElectron Density=2,607.79 barns/cc. |
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| Radioactivity: |
GRapi = 0 (Gamma Ray American Petroleum Institute Units) Anduoite is Not Radioactive |
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Anduoite Classification |
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| Dana Class: |
02.12.02.08 (02)Sulfides - Including Selenides and Tellurides | ||
| (02.12)where Am Bn Xp, with (m+n):p=1:2 | |||
| (02.12.02)Marcasite Group (Orthorhombic: Pnnm) | |||
| Strunz Class: |
02.EB.15a 02 - SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulf | ||
| 02.E - Metal Sulfides, M:S � 1:2 | |||
| 02.EB -M:S = 1:2, with Fe, Co, Ni, PGE, etc. | |||
Other Anduoite Information |
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| References: |
NAME( AntBidBlaNic1) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(AntBidBlaNic1) | ||
| See Also: |
Links to other databases for Anduoite : 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 15 - WWW-MINCRYST Search for Anduoite using: Visit our Advertisers for Anduoite : Ask about Anduoite here : Print or Cut-and-Paste your Anduoite Specimen Label here :
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