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Formula: Hg1+2Hg2+(AsO4)Cl
Arsenate, mercury-bearing mineral
Crystal System: Isometric
Specific gravity: 8.64 to 8.82 measured, 8.691 calculated
Hardness: 2½ to 3
Streak: Orange
Colour: Brown, yellow
Solubility: Blackened by KOH, decolorised and decomposed by hydrochloric acid, does not react with 1:1 nitric acid
Environments
Localities
There are two co-type localities, the Khaidarkan Sb-Hg deposit, Kadamjay District, Batken Region, Kyrgyzstan, and
the Arzak Hg occurrence (Arzakskoye), Uyuk Range, Pi-Khem District, Tuva, Russia.
At the Khaidarkan Sb-Hg deposit, Kadamjay District, Batken Region, Kyrgyzstan, kuznetsovite occurs in the
oxidation zone of the hydrothermal mercury deposit. Associated minerals
include cinnabar, calomel,
eglestonite, corderoite,
mercury, livingstonite,
montroydite, shakhovite
and chursinite
(HOM).
Kuznetsovite from Khaidarkan - Image
At the Arzak Hg occurrence (Arzakskoye), Uyuk Range, Pi-Khem District, Tuva, Russia, kuznetsovite occurs in
the oxidation zone of nests of rich cinnabar ore, associated with
calomel, eglestonite,
corderoite and native mercury
(AM 66.1100).
At the McDermitt Mine, Opalite Mining District, Humboldt County, Nevada, USA, brown-green kuznetsovite has
been found in a grainy matrix of silica with a trace of red cinnabar
(Mindat photo).
Kuznetsovite from the McDermitt Mine -
Image
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