Fluorite, Calcite on Chalcedony - lead-zinc deposit Dalnegorsk, Vladivostok, Russia
 
 Well-grown green octahedron fluorite and flat-sheet calcite on chalcedony on this 9 cm x 6.6 cm specimen from the lead-zinc deposit in Dalnegorsk, Vladivostok, Russia. The largest fluorite is 1.2 cm on the edge and, like the other crystals at this cluster, of good quality and has a satin lustre.