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Treasurite Mineral Data
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General Treasurite Information
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 Chemical Formula: |
Ag7Pb6Bi15S32 |
| Composition: |
Molecular Weight = 6,159.10 gm |
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Silver 12.26 % Ag |
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Bismuth 50.90 % Bi |
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Lead 20.18 % Pb |
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Sulfur 16.66 % S |
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______ |
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100.00 % |
| Empirical Formula: |
Ag7Pb6Bi15S32 |
| Environment: |
In hydrothermal vein material. |
| IMA Status: |
Approved IMA 1977 |
| Locality: |
Treasury mine, Geneva district, Colorado, USA. Link to MinDat.org Location Data. |
| Name Origin: |
Named for the locality. |
| Name Pronunciation: |
Treasurite + Pronunciation  |
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Treasurite Crystallography
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| Axial Ratios: |
a:b:c =6.4853:1:3.2622 |
| Cell Dimensions: |
a = 26.538, b = 4.092, c = 13.349, Z = 1; beta = 92.77° V = 1,447.92 Den(Calc)= 7.06 |
| Crystal System: |
Monoclinic - Prismatic H-M Symbol (2/m) Space Group: B2/m |
| X Ray Diffraction: |
By Intensity(I/Io): 3.49(1), 3.22(0.8), 1.989(0.6), |
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Physical Properties of Treasurite
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| Color: |
Black. |
| Density: |
7.25 |
| Diaphaneity: |
Opaque |
| Habit: |
Aggregates - Made of numerous individual crystals or clusters. |
| Habit: |
Granular - Generally occurs as anhedral to subhedral crystals in matrix. |
| Habit: |
Microscopic Crystals - Crystals visible only with microscopes. |
| Luster: |
Metallic |
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Optical Properties of Treasurite
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| RL Anisotrophism: |
Distinct to strong, in light gray to steel bluish black. |
| RL Color: |
White. |
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Calculated Properties of Treasurite
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| Electron Density: |
Bulk Density (Electron Density)=5.91 gm/cc
note: Specific Gravity of Treasurite =7.06 gm/cc.
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| Fermion Index: |
Fermion Index = 0.04
Boson Index = 0.96 |
| Photoelectric: |
PETreasurite =1,382.96 barns/electron
U=PETreasurite x rElectron Density=8,173.51 barns/cc.
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| Radioactivity: |
GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Treasurite is Not Radioactive |
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Treasurite Classification
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| Dana Class: |
03.06.03.01 (03)Sulfides - Sulfosalts |
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(03.06)where 2 < z/y < 2.49 - (A+)i (A++)j [By Cz], A=metals, B=semi-metals, C=non-metals |
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(03.06.03)Dana Group |
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03.06.03.01 Treasurite Ag7Pb6Bi15S32 B2/m 2/m |
| Strunz Class: |
02.JB.40a 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.40a Fizelyite Pb14Ag5Sb21S48(?) P 21/n 2/m |
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02.JB.40a Andorite PbAgSb3S6 Pmma 2/m 2/m 2/m |
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02.JB.40a Bursaite? Pb5Bi4S11 Bbmm 2/m 2/m 2/m |
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02.JB.40a Gustavite PbAgBi3S6(?) Bbmm 2/m 2/m 2/m |
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02.JB.40a Lillianite Pb3Bi2S6 Bbmm 2/m 2/m 2/m |
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02.JB.40a Roshchinite Ag19Pb10Sb51S96orPb(Ag,Cu)2(Sb,As)5S10 Pmna 2/m 2/m 2/m |
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02.JB.40a Uchucchacuaite AgPb3MnSb5S12 P mmm 2/m 2/m 2/m |
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02.JB.40a Ramdohrite Ag3Pb6Sb11S24 P 2/n 2/m |
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02.JB.40a Xilingolite Pb3Bi2S6 C 2/m 2/m |
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02.JB.40a Treasurite Ag7Pb6Bi15S32 B2/m 2/m |
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02.JB.40a Vikingite Ag5Pb8Bi13S30 C 2/m 2/m |
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Other Treasurite Information
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| References: |
NAME( Dana8) PHYS. PROP.(Dana8) OPTIC PROP.(AntBidBlaNic1) |
| See Also: |
Links to other databases for Treasurite :
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 - MinDAT
10 - Mineralienatlas (Deutsch)
11 - Online Mineral Museum
12 - QUT Mineral Atlas
13 - Ruff.Info
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Print or Cut-and-Paste your Treasurite Specimen Label here :
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Treasurite
Ag7Pb6Bi15S32
Dana No: 03.06.03.01 Strunz No: 02.JB.40a
Locality:
Notes:
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