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Volynskite Mineral Data
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General Volynskite Information
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 Chemical Formula: |
AgBiTe2 |
| Composition: |
Molecular Weight = 572.05 gm |
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Silver 18.86 % Ag |
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Bismuth 36.53 % Bi |
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Tellurium 44.61 % Te |
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______ |
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100.00 % |
| Empirical Formula: |
AgBiTe2 |
| Environment: |
As complex intergrowths with other tellurides in gold ores. |
| IMA Status: |
Approved IMA 1965 |
| Locality: |
Armenia, Russia. Link to MinDat.org Location Data. |
| Name Origin: |
Named for I. S. Volynskii (1900-1947), Polish economic geologist. |
| Name Pronunciation: |
Volynskite + Pronunciation  |
| Synonym: |
ICSD 43266 |
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PDF 18-1173 |
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Volynskite Image |
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Images:
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Volynskite Tsumoite
Comments: BSE image of composite grain of volynskite (AgBiTe) and tsumoite (BiTe) associated with sphalerite in chalcopyrite.
Location: Stobie deposit, South Range breccia belt, Supergiant Ni-Cu-PGE Sudbury District, Ontario, Canada.
Scale: See Image.
© National Resouces of Canada |
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Volynskite Crystallography
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| Axial Ratios: |
a:c = 1:4.64525 |
| Cell Dimensions: |
a = 4.468, c = 20.755, Z = 3; V = 358.82 Den(Calc)= 7.94 |
| Crystal System: |
Trigonal - Hexagonal Scalenohedral H-M Symbol (3 2/m) Space Group: P 3m1 |
| X Ray Diffraction: |
By Intensity(I/Io): 3.09(1), 2.21(0.5), 2.33(0.3), |
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Physical Properties of Volynskite
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| Cleavage: |
{???} Perfect, {???} Imperfect, {???} Imperfect |
| Color: |
Lead gray. |
| Density: |
8.01 |
| Diaphaneity: |
Opaque |
| Fracture: |
Brittle - Generally displayed by glasses and most non-metallic minerals. |
| Hardness: |
2.5-3 - Finger Nail-Calcite |
| Luster: |
Metallic |
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Optical Properties of Volynskite
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| RL Anisotrophism: |
Very weak, pale pink to gray. |
| RL Color: |
Pale purplish. |
| RL Pleochroism: |
Very slight in oil. |
| Reflectivity |
Standardized Intensity (100%) Reflection Spectra of Volynskite in Air
| λ |
R1 |
R2 |
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∑ R1(λ) |
∑ R2(λ) |
| 400 nm |
56.40 |
58.10 |
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| 420 nm |
56.00 |
57.70 |
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| 440 nm |
55.60 |
57.30 |
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| 460 nm |
55.20 |
56.90 |
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| 480 nm |
54.60 |
56.30 |
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| 500 nm |
53.80 |
55.50 |
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| 520 nm |
53.20 |
54.90 |
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| 540 nm |
53.00 |
54.60 |
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| 560 nm |
53.40 |
54.70 |
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| 580 nm |
54.00 |
54.90 |
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| 600 nm |
54.60 |
55.10 |
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| 620 nm |
55.00 |
55.50 |
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| 640 nm |
55.30 |
55.60 |
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| 660 nm |
55.30 |
55.80 |
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| 680 nm |
55.30 |
55.80 |
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| 700 nm |
55.40 |
55.80 |
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Calculated Relative Intensity Colors of Volynskite in Air
Relative
Intensity |
0% |
20% |
40% |
60% |
80% |
100% |
120% |
140% |
160% |
170% |
| R1 |
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| R2 |
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Calculated Properties of Volynskite
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| Electron Density: |
Bulk Density (Electron Density)=6.50 gm/cc
note: Specific Gravity of Volynskite =7.94 gm/cc.
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| Fermion Index: |
Fermion Index = 0.03
Boson Index = 0.97 |
| Photoelectric: |
PEVolynskite = 938.37 barns/electron
U=PEVolynskite x rElectron Density=6,095.48 barns/cc.
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| Radioactivity: |
GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Volynskite is Not Radioactive |
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Volynskite Classification
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| Dana Class: |
03.07.01.03 (03)Sulfides - Sulfosalts |
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(03.07)where z/y = 2 - (A+)i (A++)j [By Cz], A=metals, B=semi-metals, C=non-metals |
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(03.07.01)Matildite Group |
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03.07.01.01 Matildite AgBiS2 P 3m1 3 2/m |
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03.07.01.02 Bohdanowiczite AgBiSe2 P 3m1 3 2/m |
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03.07.01.03 Volynskite AgBiTe2 P 3m1 3 2/m |
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03.07.01.04 Zlatogorite! CuNiSb2 P 3m1 3 2/m |
| Strunz Class: |
02.JA.20 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.JA -Galena derivatives with little or no Pb |
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02.JA.20 Bohdanowiczite AgBiSe2 P 3m1 3 2/m |
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02.JA.20 Matildite AgBiS2 P 3m1 3 2/m |
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02.JA.20 Volynskite AgBiTe2 P 3m1 3 2/m |
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Other Volynskite 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 Volynskite :
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
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Volynskite
AgBiTe2
Dana No: 03.07.01.03 Strunz No: 02.JA.20
Locality:
Notes:
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