Chovanite
Chovanite is an IMA-recognized mineral species in the oxides & hydroxide class, with the chemical formula Pb₁₅₋₂ₓSb₁₄₊₂ₓS₃₆Oₓ (x~0.2).
It crystallizes in the monoclinic crystal system (space group C2/m).
Key properties: Mohs hardness 3; specific gravity 7.14; Metallic. Bireflectance: Distinct luster.
IMA symbol Cov, IMA status: approved, named in 2009.
Found in hydrothermal vein and stockwork antimony deposits cutting granites, mica schists or silicified mylonitized granitoids.
It is found associated with Boulangerite, robinsonite, dadsonite, scainiite.
The mineral was named to honor Professor Martin Chovan (b. 1946), Department of Mineralogy and Petrology, Comenius University, Bratislava, Slovakia.
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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