Warikahnite

arsenate

dolostone

Formula: Zn3(AsO4)2.2H2O
Hydrated normal arsenate, zinc mineral
Specific gravity: 4.24
Hardness: 2
Streak: White
Colour: Colourless to light yellow
Solubility: Dissolves in hot hydrochloric and nitric acid (Dana)
Environments

Hydrothermal environments

Warikhanite is a rare secondary arsenate formed by alteration of tennantite in an oxidised zone in a dolostone-hosted hydrothermal polymetallic ore deposit, associated with tennantite, claudetite, ludlockite, cuprian adamite, stranskiite and tsumcorite (HOM).

At the type locality, the Tsumeb Mine, Oshikoto Region, Namibia, warikhanite occurs in the second oxidation zone on corroded tennantite associated with adamite, stranskiite, koritnigite, claudetite, tsumcorite and ludlockite (Dana, AM 65.408). The first specimen found was at the E9 pillar, associated with cuprian adamite, koritnigite, stranskiite, helmutwinklerite, claudetite, ludlockite, tsumcorite and lavendulan; a later find was a specimen from the O stope, 31 level, where the only associated mineral was quartz (MinRec 36.4.315).

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