| Niningerite | |
|---|---|
| General | |
| Category | Sulfide minerals |
| Formula | MgS |
| IMA symbol | Nng1 |
| 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 | 3+1⁄2 – 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.2 Niningerite is the magnesium-dominant analog of keilite.3 This mineral is named after Harvey H. Nininger.
References
References
- Warr, L.N. (2021). "IMA–CNMNC approved mineral symbols". Mineralogical Magazine. 85 (3): 291–320. Bibcode:2021MinM...85..291W. doi:10.1180/mgm.2021.43. S2CID 235729616.
- webminerals
- 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. Bibcode:2002CaMin..40.1687S. doi:10.2113/gscanmin.40.6.1687. S2CID 93381076.