Green Goldstone 10mm Round - 15-16 Inch India The presence of Manganese within

The presence of Manganese within the stone produces the purple hue

Fossil Coral is the prehistoric fossilized remains of the invertebrate reef builders that live in tropical oceans

tan and ivory

but the difference in the pattern really stands out and shows it's individual beauty

Essentially a volcanic glass

Green Goldstone 10mm Round - 15-16 Inch India The presence of Manganese withinGreen Goldstone is an opaque, almost black glass with flecks of copper suspended within it. These flecks glitter as they catch the light and appear green against the dark glass. Goldstone was first created during the Italian Renaissance when, as legend has it, a Venetian monk tipped molten copper into a vat of molten glass. When this combination crystallized, the result was glass permeated with thousands of tiny metallic sparkles.