| 05653: Goethite cast after Gypsum with
Calcite - $75 Lavrion mines, Lavreotiki, East Attica, Attica, Greece Cabinet - 14.7 x 3.2 x 3.1 cm 222 grams Specimen status: Available Send an email with specimen number to order This specimen began as a gypsum crystal prism, which became coated with a thick goethite layer. The gypsum dissolved away leaving this cast (epimorph). A few patches of calcite were also deposited at some time. An unusually large and sharp example of this material. Excellent condition. |
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