Chloromenite
Chloromenite is an IMA-recognized mineral species in the halide class, with the chemical formula Cu₉O₂(Se⁴⁺O₃)₄Cl₆.
It crystallizes in the monoclinic crystal system (space group I2/m).
Key properties: specific gravity 4.15; Yellowish green streak; Vitreous luster; optically biaxial.
IMA symbol Cmn, IMA status: approved, named in 1996.
Formed in a volcanic fumarole.
It is found associated with Melanothallite, sofiite, georgbokiite, ilinskite, chloromenite, burnsite, cotunnite.
Its name comes from the Greek for green, in allusion to its color, and for moon, for its selenium content.
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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