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Kieftite

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Formula:
CoSb
 
3
System:IsometricHardness:5 - 5½
This page provides mineralogical data about Kieftite.

Classification of Kieftite

IMA status:Approved
Strunz 8th edition ID:2/D.29-25
Nickel-Strunz 10th (pending) edition ID:2.EC.05

2 : SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulfantimonites, sulfbismuthites, etc.)
E : Metal Sulfides, M: S <= 1:2
C : M:S = 1:>2
Dana 8th edition ID:2.12.17.3

2 : SULFIDES
12 : AmBnXp, with (m+n):p = 1:2
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Type Occurrence of Kieftite

Type Locality:Tunaberg Cu-Co Ore Field, Tunaberg, Nyköping, Södermanland, Sweden
Year of Discovery:1994
Geological Setting of type material:Cu-Co-sulfide skarn ore

Physical Properties of Kieftite

Hardness (Mohs):5 - 5½

Crystallography of Kieftite

Crystal System:Isometric
Cell Parameters:a = 9.04Å
Unit Cell Volume:V 738.76 ų (Calculated from Unit Cell)

Optical Data of Kieftite

Type:Isotropic

Chemical Properties of Kieftite

Formula:
CoSb
 
3
Essential elements:Co, Sb
All elements listed in formula:Co, Sb
Common Impurities:Ni,Fe,Cu,Cl

Relationship of Kieftite to other Species

Related Minerals - Nickel-Strunz Grouping):

- +
2.EC.05Nickelskutterudite
NiAs
 
2-3
2.EC.05Skutterudite
(Co,Fe,Ni)As
 
2-3
2.EC.05Ferroskutterudite
(Fe,Co)As
 
3
2.EC.10Patrónite
VS
 
4

Other Names for Kieftite

Synonyms:
IMA1991-052
Other Languages:
German:Kieftit
Russian:Кифтит
Spanish:Kieftita

Other Information

Health Warning:No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

References for Kieftite

Reference List:

- +
New Minerals (1997), New Minerals 1990-1994.

Dobbe, R. T. M., Lustenhouwer, W. and Zakrzewski, M. A. (1994): Kieftite, CoSb3, a new member of the Skutterudite group from Tunaberg, Sweden. Canadian Mineralogist. 32, 179-183 .

Internet Links for Kieftite

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  • Raman and XRD data at RRUFF project
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  • Kieftite details from Handbook of Mineralogy (PDF)
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    • Localities for Kieftite

    Hide Locality List
    (TL) indicates type locality. ? indicates mineral may be doubtful at this locality. All other localities listed without reference should be considered as uncertain and unproven until references can be found.
    Morocco
     
    • Souss-Massa-Draâ Region
      • Ouarzazate Province
        • Tazenakht
          • Bou Azer District (Bou Azzer District)
            • Bouismas
    		Praszkier, T. (2010): Dyskrasit, Allargentum und Safflorit: Neufunde aus der Bouismas Mine, Bou Azzer, Marokko. Lapis, 35 (11), 32-34.
    Sweden
     
    • Närke
      • Askersund
        • Zinkgruvan
    		Andersen, C. (2009): The mineralcomposition of the Burkland Cu-sulphide deposit at Zinkgruvan, Sweden- a supplementary study:Examensarbeten i Geologi vid Lunds Universitet- Bergrundsgeologi NR 249, 41 p
    • Södermanland
      • Nyköping
        • Tunaberg
    		Dobbe, R. T. M., Lustenhouwer, W. and Zakrzewski, M. A. (1994): Kieftite, CoSb3, a new member of the Skutterudite group from Tunaberg, Sweden. Canadian Mineralogist. 32, 179-183
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    Copyright © Jolyon Ralph and Ida Chau 1993-2011. Site Map. Locality, mineral & photograph data are the copyright of the individuals who submitted them.Further information contact the Site hosted & developed by Jolyon Ralph. Mindat.org is an online information resource dedicated to providing free mineralogical information to all. Mindat relies on the contributions of hundreds of members and supporters. Mindat does not offer minerals for sale. If you would like to add information to improve the quality of our database, then click here to register. Current server date and time: 18th Jun 2011 07:11:33
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