Minerals
Chvilevaite
chvilevaite
Na(Cu,Fe,Zn)2S4
Chvilevaite Image — via webmineral.com · Source
Overview
Chvilevaite (Russian: чвилеваи́т, чвилёваи́т, in its own name) is a rare hydrothermal polymetallic mineral from the class of complex sulfides, forming microscopic grains in related minerals, its composition is a rare combination of alkali (combining lithophile) and chalcophile metals — sodium ferro-sulfide, zinc and copper with the calculation formula Na(Cu,Fe,Zn)2S4, originally published and confirmed as Na(Cu,Fe,Zn)2S2. The new mineral was studied, described and identified in 1985-1986 and named in honor of Tatyana Chvileva, a leading employee of the Institute of Mineralogy, Geochemistry and Crystal Chemistry of Rare Elements, a mineralogist at the Mineragraphy Cabinet.