Cumberlandite "Ian" Manganese Some of the bubbles contain

Some of the bubbles contain Carbon and are black in appearance

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Cumberlandite "Ian" Manganese Some of the bubbles containReally cool Cumberlandite piece. Please note, the magnetic ball shown in the photo and video is not included; it is there to demonstrate the stone's magnetism. Found exclusively on a 4 acre piece of land in Cumberland, Rhode Island, Cumberlandite is a rare igneous rock formed about 1. 5 billion years ago. Thanks to its high iron and titanium content, Cumberlandite is magnetic and was historically used to make cannonballs. Known to be a stone of