Zincroselite

minerals

roselite

leiteite

Formula: Ca₂Zn(AsO₄)₂.2H₂O
Hydrated normal arsenate, roselite group, paramorphous with gaitite
Specific gravity: 3.75
Hardness: 3
Streak: White
Colour: Colourless, white
Environments

Hydrothemal environments

At the type locality, the Tsumeb Mine, Oshikoto Region, Namibia, zincroselite was found as a rare secondary arsenic-bearing mineral in a small cavity in an oxidised zone of a dolostone-hosted hydrothermal polymetallic ore deposit (WebMin, Dana, HOM). Associated minerals included tsumcorite, stranskiite, leiteite, quartz and tennantite (HOM, MinRec 38.5).

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