. Blue Goldstone, Tumbling Rough, per lb | The Gem Shop, Inc.

Blue Goldstone, Tumbling Rough, per lb

$24.00

A manmade stone, Blue Goldstone's color is created by using cobalt instead of copper (used in Goldstone) combined with molten glass. It has a hardness of about 6 on the Mohs scale. Primary image features the rock wet.