Uraninite, Calcite: Jáchymov, Karlovy Vary District, Karlovy Vary Region, Czech Republic
Species: Uraninite, Calcite
Locality: Jáchymov, Karlovy Vary District, Karlovy Vary Region, Czech Republic
Dimensions: 8.5 cm x 7 cm x 5 cm
Interesting ore specimen from the classic Czech locality of Jáchymov featuring massive, black uraninite variety pitchblende at the top, with calcite lower down. Eric Quinter specimen U/Th 0425, pictured on mindat.org. Rare!