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Vaesite Mineral Data
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General Vaesite Information
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 Chemical Formula: |
NiS2 |
| Composition: |
Molecular Weight = 122.82 gm |
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Nickel 47.78 % Ni |
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Sulfur 52.22 % S |
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______ |
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100.00 % |
| Empirical Formula: |
NiS2 |
| Environment: |
Disseminated through dolomite (Kasompi mine, Zaire); as a secondary alteration product of arsenic-deficient nickel skutterudite (Germany) |
| IMA Status: |
Valid Species (Pre-IMA) 1945 |
| Locality: |
Kasompi mine, Katanga (Shaba), Congo (Zaire). Link to MinDat.org Location Data. |
| Name Origin: |
Named for Johannes Vaes, mineralogist for the Union Miniere du Haut Katanga. |
| Name Pronunciation: |
Vaesite  |
| Synonym: |
ICSD 79671 |
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PDF Nov-99 |
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Vaesite Image |
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Images:
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Vaesite Crystallography
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| Cell Dimensions: |
a = 5.6793, Z = 4; V = 183.18 Den(Calc)= 4.45 |
| Crystal System: |
Isometric - Diploidal H-M Symbol (2/m 3) Space Group: P a3 |
| X Ray Diffraction: |
By Intensity(I/Io): 2.83(1), 1.71(0.8), 1.09(0.6), |
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Physical Properties of Vaesite
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| Cleavage: |
{001} Perfect |
| Color: |
Black, Steel gray, Tin white. |
| Density: |
4.45 |
| Diaphaneity: |
Opaque |
| Habit: |
Disseminated - Occurs in small, distinct particles dispersed in matrix. |
| Habit: |
Massive - Uniformly indistinguishable crystals forming large masses. |
| Hardness: |
4.5-5.5 - Near Apatite |
| Luster: |
Metallic |
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Optical Properties of Vaesite
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| RL Color: |
Gray, pale violet. |
| RL Pleochroism: |
None. |
| Reflectivity |
Standardized Intensity (100%) Reflection Spectra of Vaesite in Air
| λ |
R |
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∑ R(λ) |
| 400 nm |
35.00 |
 |
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| 420 nm |
34.30 |
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| 440 nm |
33.60 |
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| 460 nm |
33.00 |
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| 480 nm |
32.50 |
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| 500 nm |
32.00 |
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| 520 nm |
31.80 |
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| 540 nm |
31.60 |
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| 560 nm |
31.50 |
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| 580 nm |
31.50 |
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| 600 nm |
31.60 |
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| 620 nm |
31.80 |
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| 640 nm |
32.00 |
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| 660 nm |
32.40 |
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| 680 nm |
33.00 |
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| 700 nm |
33.60 |
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Calculated Relative Intensity Colors of Vaesite in Air
Relative
Intensity |
0% |
30% |
60% |
90% |
100% |
120% |
150% |
180% |
210% |
240% |
270% |
280% |
| R |
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Calculated Properties of Vaesite
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| Electron Density: |
Bulk Density (Electron Density)=4.35 gm/cc
note: Specific Gravity of Vaesite =4.45 gm/cc.
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| Fermion Index: |
Fermion Index = 0.0093158148
Boson Index = 0.9906841852 |
| Photoelectric: |
PEVaesite = 21.79 barns/electron
U=PEVaesite x rElectron Density= 94.75 barns/cc.
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| Radioactivity: |
GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Vaesite is Not Radioactive |
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Vaesite Classification
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| Dana Class: |
02.12.01.02 (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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(02.12.01)Pyrite Group (Isometric: Pa3) |
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02.12.01.01 Pyrite FeS2 P a3 2/m 3 |
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02.12.01.02 Vaesite NiS2 P a3 2/m 3 |
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02.12.01.03 Cattierite CoS2 P a3 2/m 3 |
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02.12.01.04 Penroseite (Ni,Co,Cu)Se2 P a3 2/m 3 |
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02.12.01.05 Trogtalite CoSe2 P a3 2/m 3 |
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02.12.01.06 Villamaninite (Cu,Ni,Co,Fe)S2 P a3 2/m 3 |
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02.12.01.07 Fukuchilite Cu3FeS8 P a3 2/m 3 |
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02.12.01.08 Krutaite CuSe2 P a3 2/m 3 |
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02.12.01.09 Hauerite MnS2 P a3 2/m 3 |
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02.12.01.10 Laurite RuS2 P a3 2/m 3 |
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02.12.01.11 Aurostibite AuSb2 P a3 2/m 3 |
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02.12.01.12 Krutovite NiAs2 P a3 2/m 3 |
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02.12.01.13 Sperrylite PtAs2 P a3 2/m 3 |
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02.12.01.14 Geversite Pt(Sb,Bi)2 P a3 2/m 3 |
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02.12.01.15 Insizwaite Pt(Bi,Sb)2 P a3 2/m 3 |
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02.12.01.16 Erlichmanite OsS2 P a3 2/m 3 |
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02.12.01.17 Dzharkenite FeSe2 P a3 2/m 3 |
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02.12.01.18 Gaotaiite Ir3Te8 P a3 2/m 3 |
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02.12.01.19 Mayingite IrBiTe P a3 2/m 3 |
| Strunz Class: |
02.EB.05a 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.05a Aurostibite AuSb2 P a3 2/m 3 |
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02.EB.05a Cattierite CoS2 P a3 2/m 3 |
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02.EB.05a Hauerite MnS2 P a3 2/m 3 |
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02.EB.05a Fukuchilite Cu3FeS8 P a3 2/m 3 |
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02.EB.05a Dzharkenite FeSe2 P a3 2/m 3 |
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02.EB.05a Erlichmanite OsS2 P a3 2/m 3 |
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02.EB.05a Geversite Pt(Sb,Bi)2 P a3 2/m 3 |
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02.EB.05a Gaotaiite Ir3Te8 P a3 2/m 3 |
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02.EB.05a Insizwaite Pt(Bi,Sb)2 P a3 2/m 3 |
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02.EB.05a Laurite RuS2 P a3 2/m 3 |
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02.EB.05a Krutaite CuSe2 P a3 2/m 3 |
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02.EB.05a Pyrite FeS2 P a3 2/m 3 |
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02.EB.05a Penroseite (Ni,Co,Cu)Se2 P a3 2/m 3 |
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02.EB.05a Sperrylite PtAs2 P a3 2/m 3 |
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02.EB.05a Vaesite NiS2 P a3 2/m 3 |
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02.EB.05a Villamaninite (Cu,Ni,Co,Fe)S2 P a3 2/m 3 |
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02.EB.05a Trogtalite CoSe2 P a3 2/m 3 |
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Other Vaesite 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 Vaesite :
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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Vaesite
NiS2
Dana No: 02.12.01.02 Strunz No: 02.EB.05a
Locality:
Notes:
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