Shakhovite Locality: Vrissaki Point slag locality, Vrissaki area, Lavrion District slag localities, Lavrion (Laurion; Laurium) District, Attikí (Attica; Attika) Prefecture, Greece Picture width 2 mm. Collection and Photo Christian Rewitzer — Photo: Christian Rewitzer · CC BY-SA 3.0
Shakhovite
Shakhovite is an IMA-recognized mineral species in the oxides & hydroxide class, with the chemical formula Hg¹⁺₄Sb⁵⁺O₃(OH)₃.
It crystallizes in the monoclinic crystal system (space group Im).
Key properties: Mohs hardness 3–3.5; specific gravity 8.34–8.51; Yellowish white streak; Adamantine luster.
IMA symbol Sk, IMA status: approved, named in 1980.
A late-stage secondary mineral in the oxidation zone of cinnabar-stibnite ore (Kelyana mine, Russia); in the oxidation zone of cinnabar-livingstonite ore (Khaydarkan, Kyrgyzstan); in oxidized Hg–Sb-bearing tetrahedrite ore (Landsberg.
It is found associated with Calomel, eglestonite, mercury, montroydite, terlinguaite, corderoite, kelyanite, kuznetsovite, antimony oxides (Kelyana mine, Russia); calomel, cinnabar.
The mineral was named to honor Feliks Nikolaevich Shakhov (1894–1971), Head of the Division of Geochemistry of the Russian Academy of Sciences, Novosibirsk, Russia.