KNG107c Kingstonite Cabochon Morrisonite Mahogany Obsidian is a type

Mahogany Obsidian is a type of black Obsidian with reddish brown coloring from hematite inclusions

Agates from this mine also contain a higher percentage of heat and stress fractures from the mining process and are considered less desirable so the prices tend to be more reasonable

Shipping: $300 - $800

The agate can form in veins and nodules

KNG107c Kingstonite Cabochon Morrisonite Mahogany Obsidian is a typeKingstonite, 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. 30mm x 31mm Designer Cabochons: The Gem Shop, Inc. produces