WHEWELLITE

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Whewellite is a relatively rare organic mineral, a hydrated calcium oxalate. This is a near-perfect, off-matrix, translucent to semi-transparent milky-white crystal with a pearly l ustre. Some faces display detailed growth patterns. An excellent crystal and example of this chemically unusual species from Schacht 38 Mine in the Schlema-Hartenstein District of Erzgebirge, Saxony. Show more