Warikahnite is a very rare, triclinic, zinc arsenate hydrate described in 1980 from the Tsumeb mine, Tsumeb, Otjikoto Region, Namibia and named after Walter Richard Kahn, Bayersoien, Germany, a former mine manager at Tsumeb. It is found as beautiful, amber to pale yellow, radiating clusters and masses of prismatic  to bladed crystals with an adamantine luster in two pockets from the second oxidation zone associated with adamite, stranskiite, koritnigite, claudetite, tsumcorite, and ludlockite. These minerals comprise a chemically complex and colorful assemblage. Warikahnite is also reported from the Plaka and Kamariza mines, Agios Konstantinos, Lavrion District, Attikí Prefecture, Greece.
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