Chenmingite
Chenmingite is an IMA-recognized mineral species in the oxides & hydroxide class, with the chemical formula FeCr₂O₄.
It crystallizes in the orthorhombic crystal system (space group Pnma).
Key properties: specific gravity 5.27.
IMA symbol Cnm, IMA status: approved, named in 2017.
Formed by solid-state transformation of precursor chromite, near shock-induced melt pockets, under high pressure and high temperature during the Tissint impact event on Mars.
It is found associated with Chromite, xieite, Fe, Cr-rich ulvöspinel.
The mineral was named to honor Ming Chen, a cosmochemist and mineralogist, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, China.
Index entry. This entry combines official IMA/RRUFF species data with published physical-property data — a full written entry hasn’t been published yet.
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