Thometzekite is a rare lead copper zinc arsenate-sulfate hydrate which occurs as monoclinic, tabular to lath-like, blue-green to bright green, earthy to vitreous crystals. Thometzekite is a rare secondary mineral which formed in a dolostone-hosted hydrothermal polymetallic vein deposit. It was IMA approved in 1985 and named for Wilhelm Thometzek, Director of Mining at the type locality: Tsumeb mine (Tsumcorp mine), Tsumeb, Otjikoto Region (Oshikoto), Other notable localities include: Namibia. Dal'negorsk, Kavalerovo Mining District, Primorskiy Kray, Far Eastern Region, Russia; Gold Hill mine, Gold Hill district, Toole Co., Utah.
You can buy these blue, green crystals online from The Arkenstone, www.iRocks.com to add fine mineral specimens to your collection.