Nicksobolevite
Nicksobolevite is an IMA-recognized mineral species in the halide class, with the chemical formula Cu₇(SeO₃)₂O₂Cl₆.
It crystallizes in the monoclinic crystal system (space group P2_1/c).
Key properties: Mohs hardness 2–2.5; specific gravity 4.18; Orange-red streak; Vitreous luster; optically biaxial.
IMA symbol Nsb, IMA status: approved, named in 2012.
Found in crusts deposited from gases escaping an active fumarole on a basaltic volcano.
It is found associated with Chloromenite, prewittite, melanothallite, sophiite, ralstonite, ponomarevite, gold.
The mineral was named to honor Academician Nikolay (Nick) Vladimirovich Sobolev (b. 1935), for his contributions to mineralogy and petrology.
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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