ifuckingloveminerals: bijoux-et-mineraux:Polished Malachite Stalactite - Copper Crescent, Congo*
ifuckingloveminerals: bijoux-et-mineraux: Polished Malachite Stalactite - Copper Crescent, Congo *synthetic-ishYou can tell by the pinhole in the center. Miners hang copper wires from mine ceilings and malachite precipitates out of the mine seepage onto it, creating these pretty formations. -- source link