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Klaus Keil
Named after Klaus Keil, Professor at the University of Hawaii, Honolulu, Hawaii, USA.

The iron analogue of Niningerite.

Classification of Keilite

Approved 2001

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 ed.: URL:
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Type Occurrence of Keilite

Geological Setting of Type Material:
enstatite chondrite

Physical Properties of Keilite

Diaphaneity (Transparency):

Crystallography of Keilite

Crystal System:
Class (H-M):
m3m (4/m 3 2/m) - Hexoctahedral
Space Group:
Cell Parameters:
a = 5.17Å
Unit Cell Volume:
V 138.19 ų (Calculated from Unit Cell)
X-Ray Powder Diffraction Data:
2.985 (8)
2.585 (100)
1.828 (60)
1.492 (15)
1.292 (7)
1.156 (13)
1.055 (10)

Optical Data of Keilite

Colour in reflected light:

Chemical Properties of Keilite

All elements listed in formula:

Relationship of Keilite to other Species


Other Names for Keilite

Name in Other Languages:
Simplified Chinese:硫镁铁矿
Traditional Chinese:硫鎂鐵礦

Other Information

Health Risks:
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

Localities for Keilite

map shows a selection of localities that have latitude and longitude coordinates recorded. Click on the symbol to view information about a locality. The symbol next to localities in the list can be used to jump to that position on the map.
(TL) indicates type locality for a valid mineral species. (FRL) indicates first recorded locality for everything else. ? 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.
  • Eastern Antarctica
    • Transantarctic Mts
      • Pecora Escarpment
        • LaPaz Ice Field
Izawa, M. R. M., Flemming, R. L., Banerjee, N. R. & McCausland, P. J. A. (2011) Micro-X-ray diffraction assessment of shock stage in enstatite chondrites: Meteoritics & Planetary Science 46 (5): 638-651. (May 2011)
Canada (TL)
  • Alberta
    • Abee
Shimizu M, Yoshida H, Mandarino J A (2002) The new mineral species keilite, (Fe,Mg)S, the iron-dominant analogue of niningerite, The Canadian Mineralogist 40, 1687-1692
  • Midi-Pyrénées
    • Haute-Garonne
Shimizu M, Yoshida H, Mandarino J A (2002) The new mineral species keilite, (Fe,Mg)S, the iron-dominant analogue of niningerite, The Canadian Mineralogist 40, 1687-1692
  • Punjab
Shimizu M, Yoshida H, Mandarino J A (2002) The new mineral species keilite, (Fe,Mg)S, the iron-dominant analogue of niningerite, The Canadian Mineralogist 40, 1687-1692
  • Lubelskie
    • Zamość
Przylibski, T. A., Jakubowski, T., Karwowski, L., Kryza, R. & Uszczek, K. (2011) New Data on Graphite from the Zaklodzie Enstatite Achondrite (Abstract id. 5198). Meteoritics & Planetary Science 46, Supplement: A193. (July 2011); Ma, C., Beckett, J. R. & Rossman, G. R. (2012) Discovery of Buseckite, (Fe,Zn,Mn)S, a New Mineral in Zaklodzie, an Ungrouped Enstatite-Rich Achondrite. Lunar and Planetary Science Conference XLIII. LPI Contribution No. 1659, id.1520. (March 2012)
  • Nar an Nil
Addi Bischoff, Mariam Horstmann, Andreas Pack, Matthias Laubstein & Siegfried Haberer (2010). Asteroid 2008 TC3—Almahata Sitta: A spectacular breccia containing many different ureilitic and chondritic lithologies. Meteoritics & Planetary Science 45, (#10-11), 1638-1657-1667. (Oct-Nov 2010).
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