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Urvantsevite Mineral Data
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General Urvantsevite Information
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 Chemical Formula: |
Pd(Bi,Pb)2 |
| Composition: |
Molecular Weight = 523.49 gm |
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Bismuth 59.88 % Bi |
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Palladium 20.33 % Pd |
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Lead 19.79 % Pb |
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______ |
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100.00 % |
| Empirical Formula: |
PdBi1.5Pb0.5 |
| Environment: |
High temperature ploymorph of froodite. |
| IMA Status: |
Approved IMA 1976 |
| Locality: |
Majak mine, Talnakh, Norilsk, Russia. Link to MinDat.org Location Data. |
| Name Origin: |
Named for Nikolai N. Urvantsev (1893-1985), Russian geologist who discovered the Norilsk deposits. |
| Name Pronunciation: |
Urvantsevite + Pronunciation  |
| Synonym: |
ICSD 56280 |
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PDF 13-160 |
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Urvantsevite Image |
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Images:
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Urvantsevite
Comments: Epoxy grain mount of a fragment of urvantsevite (Urv).
Location: Talnakh Cu-Ni deposit, near noril'sk, Krasnoyarsk region, Russia.
Scale: See Image.
© Diederik Visser |
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Urvantsevite Crystallography
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| Axial Ratios: |
a:c = 1:3.83668 |
| Cell Dimensions: |
a = 3.3628, c = 12.902, Z = 2; V = 145.90 Den(Calc)= 11.92 |
| Crystal System: |
Tetragonal - Ditetragonal Dipyramidal H-M Symbol (4/m 2/m 2/m) Space Group: I 4/mmm |
| X Ray Diffraction: |
By Intensity(I/Io): 2.643(1), 2.372(0.8), 1.42(0.7), |
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Physical Properties of Urvantsevite
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| Cleavage: |
{???} Perfect |
| Color: |
Steel gray. |
| Density: |
9.66 |
| Diaphaneity: |
Opaque |
| Hardness: |
2.5 - Finger Nail |
| Luster: |
Metallic |
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Optical Properties of Urvantsevite
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| RL Anisotrophism: |
Slight. |
| RL Color: |
Grayish white. |
| RL Pleochroism: |
Weak to none. |
| Reflectivity |
Standardized Intensity (100%) Reflection Spectra of Urvantsevite in Air
| λ |
R1 |
R2 |
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∑ R1(λ) |
∑ R2(λ) |
| 440 nm |
50.50 |
48.70 |
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| 460 nm |
54.90 |
53.20 |
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| 480 nm |
53.80 |
54.60 |
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| 500 nm |
53.30 |
54.10 |
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| 520 nm |
53.70 |
54.80 |
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| 540 nm |
54.00 |
55.20 |
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| 560 nm |
54.90 |
56.20 |
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| 580 nm |
55.20 |
56.70 |
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| 600 nm |
56.10 |
57.00 |
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| 620 nm |
56.80 |
58.30 |
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| 640 nm |
57.80 |
59.20 |
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| 660 nm |
58.60 |
60.10 |
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| 680 nm |
59.60 |
60.90 |
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| 700 nm |
59.60 |
61.30 |
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Calculated Relative Intensity Colors of Urvantsevite 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 Urvantsevite
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| Electron Density: |
Bulk Density (Electron Density)=9.63 gm/cc
note: Specific Gravity of Urvantsevite =11.9 gm/cc.
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| Fermion Index: |
Fermion Index = 0.08
Boson Index = 0.92 |
| Photoelectric: |
PEUrvantsevite =1,621.16 barns/electron
U=PEUrvantsevite x rElectron Density=15614.71 barns/cc.
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| Radioactivity: |
GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Urvantsevite is Not Radioactive |
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Urvantsevite Classification
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| Dana Class: |
02.12.15.02 (02)Sulfides - Including Selenides and Tellurides |
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(02.12)where Am Bn Xp, with (m+n):p=1:2 |
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(02.12.15)Dana Group |
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02.12.15.01 Froodite PdBi2 C 2/m 2/m |
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02.12.15.02 Urvantsevite Pd(Bi,Pb)2 I 4/mmm 4/m 2/m 2/m |
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02.12.15.03 Verbeekite! PdSe2 C 2, Cm, or C 2/m Mono |
| Strunz Class: |
02.EB.30 02 - SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulf |
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02.E - Metal Sulfides, M:S � 1:2 |
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02.EB -M:S = 1:2, with Fe, Co, Ni, PGE, etc. |
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02.EB.30 Urvantsevite Pd(Bi,Pb)2 I 4/mmm 4/m 2/m 2/m |
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Other Urvantsevite Information
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| References: |
NAME( Dana8) PHYS. PROP.(Larousse des Mineraux,1981) |
| See Also: |
Links to other databases for Urvantsevite :
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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Urvantsevite
Pd(Bi,Pb)2
Dana No: 02.12.15.02 Strunz No: 02.EB.30
Locality:
Notes:
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