Kleinite

kleinite

terlinguaite

montroydite

mosesite

Images

Formula: (Hg2N)(Cl,SO4).nH2O
Oxyhalide, paramorph of mosesite, mercury-bearing mineral
Specific gravity: 8
Hardness: 3½
Streak: Yellow
Colour: Light to canary-yellow, orange; darkens to reddish yellow or orange in daylight and reverts to original colour in darkness; yellow to colourless in transmitted light
Solubility: Soluble in warm hydrochloric and nitrc acid without deposition of calomel, soluble in ammonium bromide with evolution of ammonia (Mindat)
Environments

Hydrothermal environments

Kleinite occurs in the oxidised portions of mercury deposits (Webmin).

Localities

At the type locality, the Terlingua Mining District, Texas, USA, kleinite is associated with terlinguaite, montroydite, gypsum, calcite and baryte (Mindat, Dana).

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