KNG104c Kingstonite Cabochon Candle Holders & Lamps with brown mineral inclusions surrounded

with brown mineral inclusions surrounded by blue-gray banding

These large black obsidian spheres are polished to a high shine and are very reflective

The slab is 2 mm thick

31x43 (mm)

From Brazil

KNG104c Kingstonite Cabochon Candle Holders & Lamps with brown mineral inclusions surroundedKingstonite, also commonly called Kingston Ore or Kingstone Conglomerate, is a conglomerate rock primarily made up of native copper, reddish rhyolite, and felsite pebbles. It is found near the Kingston Copper Mine in Keweenaw, Michigan. This polished Kingstonite cabochon features a brick red matrix, spots of gray or black felsite, and veins of native copper throughout that flash in the light. 28mm x 37mm Designer Cabochons: The Gem Shop, Inc. produces