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Kieftite

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 skarns, Tunaberg, Nyköping, Södermanland, Sweden
Year of Discovery:1994

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.

Canadian Mineralogist (1994): 32: 179-183.

Internet Links for Kieftite

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    Localities for Kieftite

    (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.
    Sweden
     
    • Södermanland
      • Nyköping
        • Tunaberg
    Can Min (1994) 179-184
    Can Min (1994) 32, 179-184
    Mineral and/or Locality
    Google
     
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