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Austinite - Sold

Austinite is a hydrous calcium zinc arsenate, originally found in Utah. The mineral name honors Austin F. Rogers (1877-1957), mineralogist at Stanford University (Staples, 1935). While pure austinite is colorless, many specimens incorporate copper, causing a green color.

Austinite here forms a coverage of crystalline gemmy green aggregates, covering two sides of a gossan matrix. The luster and color are superb; such material is no longer produced. This specimen dates to 1956, when this piece was purchased from dealer Scott Williams. An old collection label, and Williams label ship with this specimen.