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Kieftite Mineral Data
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General Kieftite Information
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 Chemical Formula: |
CoSb3 |
| Composition: |
Molecular Weight = 424.18 gm |
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Cobalt 13.89 % Co |
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Antimony 86.11 % Sb |
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______ |
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100.00 % |
| Empirical Formula: |
CoSb3 |
| IMA Status: |
Approved IMA 1994 |
| Locality: |
Link to MinDat.org Location Data. |
| Name Origin: |
Named in 1994 for Cornelis Kieft (b.1924), Dutch mineralogist. |
| Name Pronunciation: |
Kieftite  |
| Synonym: |
ICSD 62110 |
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PDF 47-1769 |
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Kieftite Image |
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Images:
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Kieftite
Comments: Euhedral kieftite (Kf) crystal in chalcopyrite (Cp) with bismuth (bi) and bornite (Bn). CanMin 32:179.
Location: Tunaberg C u-Co-sulfide skam ores, southeastem Bergslagen, Sweden.
Scale: Crystal size 80 µm.
© Canadian Mineralogist |
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Kieftite Crystallography
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| Cell Dimensions: |
a = 9.0411, Z = 8; V = 739.03 Den(Calc)= 7.62 |
| Crystal System: |
Isometric - Diploidal H-M Symbol (2/m 3) Space Group: I m3 |
| X Ray Diffraction: |
By Intensity(I/Io): 2.86(1), 0.933(0.8), 2.02(0.8), |
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Physical Properties of Kieftite
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| Cleavage: |
None |
| Color: |
Tin white. |
| Density: |
7.2 |
| Diaphaneity: |
Opaque |
| Hardness: |
5-5.5 - Apatite-Knife Blade |
| Luster: |
Metallic |
| Streak: |
gray |
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Calculated Properties of Kieftite
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| Electron Density: |
Bulk Density (Electron Density)=6.47 gm/cc
note: Specific Gravity of Kieftite =7.62 gm/cc.
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| Fermion Index: |
Fermion Index = 0
Boson Index = 1 |
| Photoelectric: |
PEKieftite = 303.60 barns/electron
U=PEKieftite x rElectron Density=1,963.41 barns/cc.
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| Radioactivity: |
GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Kieftite is Not Radioactive |
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Kieftite Classification
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| Dana Class: |
02.12.17.03 (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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(02.12.17)Skutterudite Series |
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02.12.17.01 Skutterudite (Co,Ni)As3-x I m3 2/m 3 |
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02.12.17.02 Nickelskutterudite (Ni,Co)As3-x I m3 2/m 3 |
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02.12.17.03 Kieftite CoSb3 I m3 2/m 3 |
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02.12.17.04 Ferroskutterudite! (Fe,Co)As3 Im3 2/m 3 |
| Strunz Class: |
02.EC.05 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.EC -M:S = 1:>2 |
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02.EC.05 Dienerite? Ni3As I 43d 4 3m |
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02.EC.05 Kieftite CoSb3 I m3 2/m 3 |
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02.EC.05 Nickelskutterudite (Ni,Co)As3-x I m3 2/m 3 |
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02.EC.05 Skutterudite (Co,Ni)As3-x I m3 2/m 3 |
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02.EC.05 Ferroskutterudite! (Fe,Co)As3 Im3 2/m 3 |
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Other Kieftite Information
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| References: |
NAME( Dana8) PHYS. PROP.(37th List of New Min.,Min. Mag.,1996) |
| See Also: |
Links to other databases for Kieftite :
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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Kieftite
CoSb3
Dana No: 02.12.17.03 Strunz No: 02.EC.05
Locality:
Notes:
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