0
Schaurteite, a calcium-germanium sulphate, is a very rare species from its type locality at Tsumeb and specimens are few and far between. In this superb specimen, Schaurteite occurs over a 1.0 x 0.9 cm area at one end of a granular metallic matrix of, likely, mixed Germanite, Renierite and Tennantite, based on colour and iridescence. The Schaurteite forms micro-fibrous silky sprays of white acicular needles, all intergrown to create a dense mat. A fabulous specimen of this very rare Ca-Ge species.
30 x 39 x 17 mm