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Formula: Cu3(MoO4)(OH)4
Anhydrous molybdate, paramorph of
szenicsite
Crystal System: Monoclinic
Specific gravity: 4.216 calculated
Hardness: 3½ to 4
Streak: Green
Colour: Green
Solubility: Insoluble in water, acetone, or hydrochloric acid
Environments
To date (January 2023) markascherite has been found only at the type locality.
Localities
At the type locality, the Childs-Adwinkle mine, Copper Creek, Bunker Hill District, Pinal county, Arizona, USA, markascherite is of
secondary origin and is associated with
brochantite, antlerite,
lindgrenite, wulfenite,
natrojarosite and chalcanthite
(AM 97.197-202).
It is formed by weathering of primary
molybdenite, bornite,
chalcocite and chalcopyrite in a
breccia pipe
(HOM, Mindat).
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