Georgbokiite
Georgbokiite is an IMA-recognized mineral species in the halide class, with the chemical formula Cu₅O₂(Se⁴⁺O₃)₂Cl₂.
It crystallizes in the monoclinic crystal system (space group P2_1/c).
Key properties: specific gravity 4.88; Yellowish brown streak; Vitreous to adamantine luster; optically biaxial.
IMA symbol Gbk, IMA status: approved, named in 1996.
A rare fumarolic sublimate.
It is found associated with Burnsite, chloromenite, sofiite, ilinskite, cotunnite, halite, moissanite.
The mineral was named to honor Professor Georgiy Borisovich Bokii (1909–2001), Institute of Geology of Ore Deposits, Moscow, Russia, for his work in mineralogy and crystal chemistry.
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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