Detailed information
Species
Corkite, Goethite
Dimensions
257 x 27 x 14
mm
Weight
10 g
Locality
Schöne Aussicht Mine, Dernbach Wirges, Westerwald District Rhineland-Palatinate, Germany
Condition
No recorded repairs
Schöne Aussicht mine is one of the most famous localities for the rare lead iron phosphate sulphate hydroxide species Corkite. This very large thumbnail specimen comes from the superb systematic collection assembled by the brothers Martin and Michael Günther (1951-2007 & 1956-2021) and features several distinct shapes of Corkite crystals, from a finely crystallized glossy crust on massive Goethite, to larger (0.4 to 0.9 mm wide) pseudocubic and wedge-shaped crystals in small cavities on the back of the specimen. Under strong illumination, or under microscopy, the translucent Corkite crystals present the classic yellow-olive green colour. A very good crystallized specimen of this rare secondary species.