Silver on Tennantite
Tsumeb Mine, Tsumeb, Otjikoto Region, Namibia
Small Cabinet, 7.5 x 5.5 x 3.8 cm
Intergrown octahedrons of slightly lustrous black crystals of tennantite, to 2.4 cm in length, contain visible blebs of shiny white native silver, to 1.5 mm across. Native silver from Tsumeb is very rare. This combination is even more rare! It is also, by luck, a beautiful display specimen in its own right. Significant, if you know what you are looking at...