Kuzminite
Kuzminite is an IMA-recognized mineral species in the halide class, with the chemical formula HgBr.
It crystallizes in the tetragonal crystal system (space group I4/mmm).
Key properties: Mohs hardness 2; specific gravity 7.36; White to gray streak; Adamantine luster; optically uniaxial.
IMA symbol Kzm, IMA status: approved, named in 1986.
Found in vugs in mercury sulfides, in calcite veins in a mercury ore deposit (Kadyrel deposit, Russia).
It is found associated with Eglestonite, lavrentievite, kadyrelite, calomel, mercury, corderoite, cinnabar, iron oxides (Kadyrel deposit, Russia).
The mineral was named to honor Aleksei Mikhailovich Kuzmin (1891–1980), Russian mineralogist of the Tomsk Polytechnic Institute, Tomsk, Russia.
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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