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Telluronevskite Mineral Data
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General Telluronevskite Information
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 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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______ |
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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 |
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Telluronevskite Image |
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Images:
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Telluronevskite
Comments: Granular, irregular, metallic grains of telluronevskite in white matrix.
Location: Poruba pod, Vihorlat Mts. in the Slovak Republic.
Scale: Picture Size 2 cm.
© Fabre Minerals |
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Images:
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Ingodite Telluronevskite Nevskite
Comments: Intergrown metallic grains of ingodite, telluronevskite, and nevskiite.
Location: Poruba pod Vihorlatom, Vihorlat Mountains, Kosice Slovak Republic.
Scale: Specimen Size 2.8 × 1.7 × 1 cm.
© Fabre Minerals |
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Telluronevskite Crystallography
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| 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 Scalenohedral H-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), |
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Physical Properties of Telluronevskite
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| 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 |
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Optical Properties of Telluronevskite
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| 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 |
Standardized Intensity (100%) Reflection Spectra of Telluronevskite in Air
| λ |
R1 |
R2 |
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∑ R1(λ) |
∑ R2(λ) |
| 420 nm |
45.50 |
42.50 |
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| 440 nm |
46.70 |
44.70 |
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| 460 nm |
47.80 |
45.90 |
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| 470 nm |
48.50 |
46.60 |
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| 480 nm |
49.20 |
46.90 |
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| 500 nm |
50.40 |
48.10 |
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| 520 nm |
50.50 |
48.50 |
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| 540 nm |
51.00 |
48.40 |
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| 546 nm |
51.10 |
48.50 |
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| 560 nm |
51.60 |
49.40 |
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| 589 nm |
51.90 |
49.40 |
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| 600 nm |
52.00 |
49.70 |
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| 620 nm |
52.60 |
50.20 |
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| 640 nm |
52.70 |
50.40 |
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| 650 nm |
52.80 |
50.50 |
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| 660 nm |
52.90 |
50.50 |
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| 680 nm |
53.10 |
50.60 |
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| 700 nm |
53.20 |
50.80 |
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Calculated Relative Intensity Colors of Telluronevskite in Air
Relative
Intensity |
0% |
30% |
60% |
90% |
100% |
120% |
150% |
180% |
200% |
| R1 |
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| R2 |
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Calculated Properties of Telluronevskite
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| Electron Density: |
Bulk Density (Electron Density)=6.54 gm/cc
note: Specific Gravity of Telluronevskite =8.07 gm/cc.
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| 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.
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| Radioactivity: |
GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Telluronevskite is Not Radioactive |
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Telluronevskite Classification
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| 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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02.08.20.01 Tsumoite BiTe P 3m1 3 2/m |
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02.08.20.02 Sulphotsumoite Bi3Te2S P 3m1 3 2/m |
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02.08.20.03 Nevskite Bi(Se,S) P 3m1 3 2/m |
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02.08.20.04 Ingodite Bi(S,Te) P 3m1 3 2/m |
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02.08.20.05 Telluronevskite! Bi3TeSe2 P 3m1 3 2/m |
| 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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02.DC.05b Ingodite Bi(S,Te) P 3m1 3 2/m |
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02.DC.05b Nevskite Bi(Se,S) P 3m1 3 2/m |
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02.DC.05b Sulphotsumoite Bi3Te2S P 3m1 3 2/m |
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02.DC.05b Tsumoite BiTe P 3m1 3 2/m |
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02.DC.05b Telluronevskite! Bi3TeSe2 P 3m1 3 2/m |
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Other Telluronevskite Information
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| 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
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Print or Cut-and-Paste your Telluronevskite Specimen Label here :
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Telluronevskite
Bi3TeSe2
Dana No: 02.08.20.05 Strunz No: 02.DC.05b
Locality:
Notes:
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