Krutovite, Stephanite
Svornost Mine, Jáchymov, Karlovy Vary District, Karlovy Vary Region, Czech Republic
6.0 x 5.5 x 4.0 cm. Pale gray, metallic krutovite to 0.1 mm closely intergrown with proustite, stephanite, polybasite, pyrite and siderite. Secondary minerals include annabergite, symplesite, parasymplesite, and dickite as determined by Warranty Lab Analysis (included). Josef Vajdak collection and label. Must be viewed under a microscope to ...
© Rob Lavinsky & irocks.com