Niningerite

minerals

keilite

enstatite

troilite

Formula: MgS
Sulphide, galena group
Specific gravity:
Hardness: 3½ to 4
Colour: Grey
Common impurities: Ca,Zn,Cr
Environments

Meteorites

Niningerite occurs in less extensively metamorphosed enstatite chondrite meteorites intergrown with iron variety kamacite and troilite (HOM, Webmin).

Localities

There are two co-type localities, the Indarch meteorite, Shusha, Aghjabadi District, Azerbaijan, and the Abee meteorite, Abee, Alberta, Canada.
At the Abee meteorite niningerite is associated with keilite (Minrec 35.4.353).

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