General Telluronevskite Information Chemical Formula: |
Bi3TeSe2 |
Composition: |
Molecular Weight = 890.10 gm |
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Bismuth 68.56 % Bi |
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Tellurium 14.48 % Te |
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Lead 0.47 % Pb |
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Selenium 15.35 % Se |
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Sulfur 1.15 % S |
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100.00 % |
Empirical Formula: |
Bi2.92Pb0.02Te1.01Se1.73S0.32 |
Environment: |
Found in opal-quartz veinlets in "secondary quartzite" formed by contact metamorphism or hydrothermal alteration of volcanic rocks. |
IMA Status: |
Approved IMA 2001 (Dana # Added) |
Locality: |
Bihorlat Mountains near Kosice in eastern Slovakia, Slovak Republic. Link to MinDat.org Location Data. |
Name Origin: |
Named as the Te analog of nevskite. |
Synonym: |
IMA1993-027a |
| | Telluronevskite Image
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Telluronevskite Crystallography Axial Ratios: |
a:c = 1:5.45262 |
Cell Dimensions: |
a = 4.264, c = 23.25, Z = 2; V = 366.09 Den(Calc)= 8.07 |
Crystal System: |
Trigonal - Hexagonal ScalenohedralH-M Symbol (3 2/m) Space Group: P 3m1 |
X Ray Diffraction: |
By Intensity(I/Io): 3.12(1)(104), 2.28(0.33)(108), 4.66(0.19)(005),1.355(0.18)(1.0.16), 1.935(0.16)(115,0.0.12), |
Crystal Structure:
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Mouse
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| Physical Properties of Telluronevskite Cleavage: |
{001} Perfect |
Color: |
Steel gray. |
Density: |
8.1 |
Diaphaneity: |
Opaque |
Fracture: |
Brittle - Sectile - Brittle fracture with slightly sectile shavings possible. |
Habit: |
Lath - Shaped like a small, thin plaster lath, tabular (rectangular) in shape. |
Habit: |
Massive - Granular - Common texture observed in granite and other igneous rock. |
Habit: |
Prismatic - Crystals Shaped like Slender Prisms (e.g. tourmaline). |
Hardness: |
3.5 - Copper Penny |
Luster: |
Metallic |
Streak: |
black |
| Optical Properties of Telluronevskite Optical Data: |
NCalc= 2.24 - from Gladstone-Dale relationship (KC = 0.154) where Ncalc=Dcalc*KC+1 |
NCalc= 2.25 - from Gladstone-Dale relationship (KC = 0.154) where Ncalc=Dmeas*KC+1 RL Anisotrophism: |
Moderate without any strong chromatic effects. |
RL Bireflectance: |
Weak, noticeable in oil (yellowish white to gray). |
RL Color: |
White with a yellow tint with no internal reflections were observed. |
RL Pleochroism: |
Gray to bluish gray. |
Reflectivity |
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| Calculated Properties of Telluronevskite Electron Density: |
Bulk Density (Electron Density)=6.54 gm/cc |
note: Specific Gravity of Telluronevskite =8.07 gm/cc. Fermion Index: |
Fermion Index = 0.02 |
Boson Index = 0.98 Photoelectric: |
PETelluronevskite =1,439.18 barns/electron |
U=PETelluronevskite x rElectron Density=9,406.67 barns/cc. Radioactivity: |
GRapi = 0 (Gamma Ray American Petroleum Institute Units) |
Telluronevskite is Not Radioactive | Telluronevskite Classification Dana Class: |
02.08.20.05 (02)Sulfides - Including Selenides and Tellurides |
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(02.08)where Am Bn Xp, with (m+n):p=1:1 |
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(02.08.20)Tsumoite Group (Trigonal: P-3m1) |
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Strunz Class: |
02.DC.05b 02 - SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulf |
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02.D - Metal Sulfides, M:S = 3:4 and 2:3 |
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02.DC -Variable M:S |
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| Other Telluronevskite Information References: |
NAME( AmMin, Vol 86, p 1537) PHYS. PROP.(AmMin, Vol 86, p 1537) OPTIC PROP.(EurJMin, Vol 13, p 177) |
See Also: |
Links to other databases for Telluronevskite : |
1 - Am. Min. Crystal Structure Database 2 - Athena 3 - GeoScienceWorld 4 - Google Images 5 - Google Scholar 6 - Handbook of Mineralogy (MinSocAm) 7 - Handbook of Mineralogy (UofA) 8 - MinDAT 9 - Mineralienatlas (Deutsch) 10 - Online Mineral Museum 11 - QUT Mineral Atlas 12 - Ruff.Info Search for Telluronevskite using: Visit our Advertisers for Telluronevskite : A Bijoux Google Search for TelluronevskiteAdam's Minerals Google Search for Telluronevskite Cape Minerals Google Search for Telluronevskite Dakota Matrix Minerals Google Search for Telluronevskite Excalibur Mineral Corp. Google Search for Telluronevskite Exceptional Minerals Google Search for Telluronevskite John Betts Fine Minerals Search for Telluronevskite McDougall Minerals Google Search for Telluronevskite Mineral News Website Link Rock and Mineral Shows Google Search for Telluronevskite Weinrich Minerals, Inc. Google Search for Telluronevskite Ask about Telluronevskite here : Print or Cut-and-Paste your Telluronevskite Specimen Label here :
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