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Tolovkite Mineral Data
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General Tolovkite Information
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 Chemical Formula: |
IrSbS |
| Composition: |
Molecular Weight = 346.04 gm |
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Antimony 35.18 % Sb |
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Iridium 55.55 % Ir |
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Sulfur 9.27 % S |
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______ |
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100.00 % |
| Empirical Formula: |
IrSbS |
| Environment: |
In placers derived from an Alpine-type gabbo massif. |
| IMA Status: |
Approved IMA 1981 |
| Locality: |
Ust'-Bel'skii massif, Tolvka River, Northeastern Russia. Link to MinDat.org Location Data. |
| Name Origin: |
Named for the locality. |
| Name Pronunciation: |
Tolovkite + Pronunciation  |
| Synonym: |
ICSD 74630 |
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PDF 35-656 |
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Tolovkite Image |
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Images:
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Tolovkite
Comments: Dark gray metallic crystal of tolovkite embedded in epoxy.
Location: Placer from Ust-Belsky Massif, Korjak Highand, Russia.
Scale: See Image.
© Rruff Database |
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Tolovkite Crystallography
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| Cell Dimensions: |
a = 6.027, Z = 4; V = 218.93 Den(Calc)= 10.50 |
| Crystal System: |
Isometric - Tetartoidal H-M Symbol (2 3) Space Group: P 213 |
| X Ray Diffraction: |
By Intensity(I/Io): 1.813(1), 1.146(0.9), 2.99(0.9), |
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Physical Properties of Tolovkite
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| Cleavage: |
None |
| Color: |
Steel gray. |
| Density: |
10.5 |
| Diaphaneity: |
Opaque |
| Fracture: |
Conchoidal - Fractures developed in brittle materials characterized by smoothly curving surfaces, (e.g. quartz). |
| Habit: |
Anhedral Grains - Granular minerals without the expression of crystal shapes |
| Hardness: |
7.5 - Garnet |
| Luster: |
Metallic |
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Optical Properties of Tolovkite
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| RL Color: |
Gray with a pale brown tint. |
| Reflectivity |
Standardized Intensity (100%) Reflection Spectra of Tolovkite in Air
| λ |
R |
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∑ R(λ) |
| 442 nm |
36.70 |
 |
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| 468 nm |
39.00 |
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| 484 nm |
39.90 |
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| 525 nm |
42.00 |
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| 554 nm |
42.50 |
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| 586 nm |
42.90 |
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| 621 nm |
43.50 |
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| 666 nm |
43.80 |
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| 699 nm |
44.00 |
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Calculated Relative Intensity Colors of Tolovkite in Air
Relative
Intensity |
0% |
30% |
60% |
90% |
100% |
120% |
150% |
180% |
210% |
230% |
| R |
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Calculated Properties of Tolovkite
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| Electron Density: |
Bulk Density (Electron Density)=8.74 gm/cc
note: Specific Gravity of Tolovkite =10.5 gm/cc.
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| Fermion Index: |
Fermion Index = 0.0006949999
Boson Index = 0.9993050001 |
| Photoelectric: |
PETolovkite = 951.75 barns/electron
U=PETolovkite x rElectron Density=8,317.28 barns/cc.
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| Radioactivity: |
GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Tolovkite is Not Radioactive |
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Tolovkite Classification
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| Dana Class: |
02.12.03.05 (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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(02.12.03)Cobaltite Group (Cubic or pseudocubic crystals) |
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02.12.03.01 Cobaltite CoAsS P ca21 mm2 |
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02.12.03.02 Gersdorffite NiAsS P 213 2 3 |
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02.12.03.03 Ullmannite NiSbS P 213 2 3 |
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02.12.03.04 Willyamite (Co,Ni)SbS P 213 2 3 |
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02.12.03.05 Tolovkite IrSbS P 213 2 3 |
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02.12.03.06 Platarsite (Pt,Rh,Ru)AsS P a3 2/m 3 |
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02.12.03.07 Irarsite (Ir,Ru,Rh,Pt)AsS P a3 2/m 3 |
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02.12.03.08 Hollingworthite (Rh,Pt,Pd)AsS P a3 2/m 3 |
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02.12.03.09 Jolliffeite (Ni,Co)AsSe P a3 2/m 3 |
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02.12.03.10 Padmaite PdBiSe P 213 2 3 |
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02.12.03.11 Michenerite (Pd,Pt)BiTe P 213 2 3 |
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02.12.03.12 Maslovite PtBiTe P 213 2 3 |
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02.12.03.13 Testibiopalladite PdTe(Sb,Te) P 213 2 3 |
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02.12.03.14 Changchengite! IrBiS P 213 2 3 |
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02.12.03.15 Milotaite! PdSbSe P 21/3 2 3 |
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02.12.03.16 Kalungaite! PdAsSe Pa3 2/m 3 |
| Strunz Class: |
02.EB.25 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.25 Cobaltite CoAsS P ca21 mm2 |
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02.EB.25 Changchengite! IrBiS P 213 2 3 |
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02.EB.25 Hollingworthite (Rh,Pt,Pd)AsS P a3 2/m 3 |
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02.EB.25 Gersdorffite NiAsS P 213 2 3 |
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02.EB.25 Irarsite (Ir,Ru,Rh,Pt)AsS P a3 2/m 3 |
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02.EB.25 Jolliffeite (Ni,Co)AsSe P a3 2/m 3 |
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02.EB.25 Krutovite NiAs2 P a3 2/m 3 |
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02.EB.25 Michenerite (Pd,Pt)BiTe P 213 2 3 |
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02.EB.25 Maslovite PtBiTe P 213 2 3 |
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02.EB.25 Mayingite IrBiTe P a3 2/m 3 |
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02.EB.25 Padmaite PdBiSe P 213 2 3 |
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02.EB.25 Platarsite (Pt,Rh,Ru)AsS P a3 2/m 3 |
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02.EB.25 Ullmannite NiSbS P 213 2 3 |
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02.EB.25 Tolovkite IrSbS P 213 2 3 |
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02.EB.25 Testibiopalladite PdTe(Sb,Te) P 213 2 3 |
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02.EB.25 Willyamite (Co,Ni)SbS P 213 2 3 |
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02.EB.25 Kalungaite! PdAsSe Pa3 2/m 3 |
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02.EB.25 Milotaite! PdSbSe P 21/3 2 3 |
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Other Tolovkite Information
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| References: |
NAME( AntBidBlaNic1) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(AntBidBlaNic1) |
| See Also: |
Links to other databases for Tolovkite :
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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Print or Cut-and-Paste your Tolovkite Specimen Label here :
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Tolovkite
IrSbS
Dana No: 02.12.03.05 Strunz No: 02.EB.25
Locality:
Notes:
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