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Keilite

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Abee meteorite, Abee, Alberta, Canada
© 2008, JGW

Formula:
(Fe
2+
 
,Mg)S
System:Isometric
Name:Named after Klaus Keil, Professor at the University of Hawaii, Honolulu, Hawaii, USA.


The iron analogue of Niningerite.

Classification of Keilite

IMA status:Approved 2001
Strunz 8th edition ID:2/C.15-15
Nickel-Strunz 10th (pending) edition ID:2.CD.10

2 : SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulfantimonites, sulfbismuthites, etc.)
C : Metal Sulfides, M: S = 1: 1 (and similar)
D : With Sn, Pb, Hg, etc.
Dana 7th edition ID:2.8.1.9
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Type Occurrence of Keilite

Type Locality:Abee meteorite, Abee, Alberta, Canada
Geological Setting of type material:enstatite chondrite

Physical Properties of Keilite

Lustre:Metallic
Diaphaneity (Transparency):Opaque

Crystallography of Keilite

Crystal System:Isometric
Class (H-M):m3m (4/m 3 2/m) - Hexoctahedral
Space Group:Fm3m {F4/m 3 2/m}
Cell Parameters:a = 5.17Å
Unit Cell Volume:V 138.19 ų (Calculated from Unit Cell)
X-Ray Powder Diffraction:
d-spacingIntensity
2.985 (8)
2.585 (100)
1.828 (60)
1.492 (15)
1.292 (7)
1.156 (13)

Optical Data of Keilite

Type:Isotropic
Colour in reflected light:grey

Chemical Properties of Keilite

Formula:
(Fe
2+
 
,Mg)S
All elements listed in formula:Fe, Mg, S

Relationship of Keilite to other Species

Related Minerals - Nickel-Strunz Grouping):

- +
2.CD.05Herzenbergite
(Sn,Pb)SnS
 
2
2.CD.05Teallite
(Pb,Sn)SnS
 
2
2.CD.10Alabandite
Mn
2+
 
S
2.CD.10Altaite
PbTe
2.CD.10Clausthalite
PbSe
2.CD.10Galena
PbS
2.CD.10Niningerite
(Mg,Fe
2+
 
,Mn
2+
 
)S
2.CD.10Oldhamite
(Ca,Mg)S
2.CD.15aCinnabar
HgS
2.CD.15bHypercinnabar
HgS

Other Names for Keilite

Synonyms:
IMA2001-053
Other Languages:
German:Keilit
Russian:Кейлит

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 Keilite

Reference List:Canadian Mineralogist (2002): 40: 1687-1692.

Canadian Mineralogist (2003): 41: 814.

Internet Links for Keilite

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  • Look for Keilite on Wikipedia
  • Look for Keilite on Mineralien Atlas
  • Raman and XRD data at RRUFF project
  • American Mineralogist Crystal Structure Database
  • Search for Keilite in the Natural History Museum (London) online catalogue
  • Keilite details from Handbook of Mineralogy (PDF)
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    Localities for Keilite

    (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.
    Canada
     
    • Alberta
      • Abee
    		Canadian Mineralogist, V. 41, P. 814
    Pakistan
     
    • Punjab
    Mineral and/or Locality
    Google
     
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