Chvilevaite
A rare hydrothermal sodium-copper-iron-zinc sulfide occurring as microscopic grains in related minerals.
Intro adapted from Wikipedia (CC BY-SA).
Chvilevaite is an IMA-recognized mineral species in the sulfide class, with the chemical formula Na(Cu,Fe,Zn)₂S₂.
It crystallizes in the hexagonal crystal system (space group P3m1).
Key properties: specific gravity 3.94; Metallic luster.
IMA symbol Cvi, IMA status: approved, named in 1987.
Hydrothermal in origin.
It is found associated with Sphalerite, covellite, chalcocite, galena, pyrite, boulangerite, arsenopyrite, carbonates, quartz.
The name refers to Tat’yana Nikiforovna Chvileva (1925–), economic mineralogist, Institute of Mineralogy and Geochemistry of Rare Elements, Moscow, Russia.
Index entry. This entry combines official IMA/RRUFF species data with published physical-property data and a Wikipedia introduction — a full written entry hasn’t been published yet.
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