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Owyheeite Mineral Data
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General Owyheeite Information
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 Chemical Formula: |
Pb7Ag2(Sb,Bi)8S20 |
| Composition: |
Molecular Weight = 3,455.92 gm |
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Silver 6.24 % Ag |
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Bismuth 12.09 % Bi |
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Antimony 21.14 % Sb |
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Lead 41.97 % Pb |
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Sulfur 18.56 % S |
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______ |
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100.00 % |
| Empirical Formula: |
Pb7Ag2Sb6Bi2S20 |
| Environment: |
In veins of hydrothermal origin. |
| IMA Status: |
Valid Species (Pre-IMA) 1921 |
| Locality: |
Poorman Mine, Silver City district, Owyhee County, Idaho, USA. Link to MinDat.org Location Data. |
| Name Origin: |
Named after its locality. |
| Name Pronunciation: |
Owyheeite + Pronunciation  |
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Owyheeite Image |
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Images:
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Owyheeite Crystallography
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| Axial Ratios: |
a:b:c =0.8389:1:0.3011 |
| Cell Dimensions: |
a = 22.82, b = 27.2, c = 8.19, Z = 6; V = 5,083.57 Den(Calc)= 6.77 |
| Crystal System: |
Orthorhombic - Dipyramidal H-M Symbol (2/m 2/m 2/m) Space Group: Pnam |
| X Ray Diffraction: |
By Intensity(I/Io): 3.25(1), 3.49(0.7), 2.84(0.6), |
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Physical Properties of Owyheeite
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| Cleavage: |
{???} Perfect |
| Color: |
Lead gray, Gray blue, Yellowish, Silver gray. |
| Density: |
6.22 - 6.51, Average = 6.36 |
| Diaphaneity: |
Opaque |
| Fracture: |
Brittle - Generally displayed by glasses and most non-metallic minerals. |
| Habit: |
Acicular - Occurs as needle-like crystals. |
| Habit: |
Fibrous - Crystals made up of fibers. |
| Habit: |
Massive - Fibrous - Distinctly fibrous fine-grained forms. |
| Hardness: |
2.5 - Finger Nail |
| Luminescence: |
Non-fluorescent. |
| Luster: |
Metallic |
| Magnetism: |
Nonmagnetic |
| Streak: |
reddish brown |
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Optical Properties of Owyheeite
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| RL Anisotrophism: |
Strong, yellowish white to gray. |
| RL Color: |
Gray-white. |
| RL Pleochroism: |
Distinct. |
| Reflectivity |
Standardized Intensity (100%) Reflection Spectra of Owyheeite in Air
| λ |
R1 |
R2 |
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∑ R1(λ) |
∑ R2(λ) |
| 400 nm |
41.50 |
46.00 |
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| 420 nm |
40.90 |
45.90 |
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| 440 nm |
40.30 |
45.80 |
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| 460 nm |
39.70 |
45.60 |
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| 480 nm |
39.20 |
45.50 |
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| 500 nm |
38.80 |
45.20 |
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| 520 nm |
38.40 |
45.00 |
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| 540 nm |
38.00 |
44.60 |
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| 560 nm |
37.70 |
44.20 |
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| 580 nm |
37.40 |
43.70 |
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| 600 nm |
37.10 |
43.20 |
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| 620 nm |
36.70 |
42.50 |
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| 640 nm |
36.30 |
41.90 |
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| 660 nm |
35.80 |
41.10 |
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| 680 nm |
35.30 |
40.30 |
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| 700 nm |
34.70 |
39.50 |
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Calculated Relative Intensity Colors of Owyheeite in Air
Relative
Intensity |
0% |
30% |
60% |
90% |
100% |
120% |
150% |
180% |
210% |
240% |
| R1 |
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| R2 |
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Calculated Properties of Owyheeite
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| Electron Density: |
Bulk Density (Electron Density)=5.72 gm/cc
note: Specific Gravity of Owyheeite =6.77 gm/cc.
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| Fermion Index: |
Fermion Index = 0.09
Boson Index = 0.91 |
| Photoelectric: |
PEOwyheeite =1,084.39 barns/electron
U=PEOwyheeite x rElectron Density=6,202.90 barns/cc.
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| Radioactivity: |
GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Owyheeite is Not Radioactive |
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Owyheeite Classification
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| Dana Class: |
03.05.10.01 (03)Sulfides - Sulfosalts |
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(03.05)where 2.5 < z/y < 3 - (A+)i (A++)j [By Cz], A=metals, B=semi-metals, C=non-metals |
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(03.05.10)Dana Group |
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03.05.10.01 Owyheeite Pb7Ag2(Sb,Bi)8S20 Pnam 2/m 2/m 2/m |
| Strunz Class: |
02.HC.35 02 - SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulf |
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02.H - Sulfosalts of SnS Archetype |
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02.HC -With only Pb |
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02.HC.35 Owyheeite Pb7Ag2(Sb,Bi)8S20 Pnam 2/m 2/m 2/m |
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02.HC.35 Zoubekite AgPb4Sb4S10 Unk Ortho |
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Other Owyheeite Information
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| References: |
NAME( Ford32) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(AntBidBlaNic1) |
| See Also: |
Links to other databases for Owyheeite :
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 Owyheeite Specimen Label here :
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Owyheeite
Pb7Ag2(Sb,Bi)8S20
Dana No: 03.05.10.01 Strunz No: 02.HC.35
Locality:
Notes:
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