Niningerite

General
Category Sulfide minerals
Formula
(repeating unit)
MgS
Strunz classification 2.CD.10
Crystal system Cubic
Crystal class Hexoctahedral (m3m)
H-M symbol: (4/m 3 2/m)
Space group Fm3m
Unit cell a = 5.2 Å; Z = 4
Identification
Color grey
Mohs scale hardness 3½ - 4
Luster metallic
Diaphaneity opaque

Niningerite is a magnesium-iron-manganese sulfide mineral with the chemical formula MgS that is found in enstatite chondrite meteorites.[1] Niningerite is the magnesium-dominant analog of keilite.[2] This mineral is named after Harvey H. Nininger.

See also

References

  1. webminerals
  2. M. Shinizu; H. Yoshida (2002). "The New Mineral Species Keilite (Fe,Mg)S, the Iron-dominant Analogue of Niningerite" (PDF). The Canadian Mineralogist. 40 (6): 1687–1692. doi:10.2113/gscanmin.40.6.1687.


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