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Azurite with anglesite, Tsumeb; 1 3/4" ac


Azurite and anglesite are both common mineral species. Both are found in the oxidized zones of polymetallic ore bodies that are mined for copper and lead. Tsumeb was an extremely rich copper-lead mine that produced thousands of azurite specimens from 1899 when mining started there until at least 1994 when the famous "Easter Pocket" azurite pocket was discovered during normal mining. At Tsumeb, azurite with malachite was probably over 1000 times more common than azurite with anglesite. The much higher water solubility of azurite compared with anglesite is a reason why the two species rarely occur together as eye visible crystals or even reasonable quality display specimens like this piece.

Matthew Webb Photo

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