Golden Obsidian 10mm Round - 15-16 Inch DSforGB12272022 Some facts about Opals

Some facts about Opals

so named because the ancient Incas believed the stone to be the petrified blood of their ancestral rulers

Weight: grams: 85-105 grams

This species is formally identified as Gliricidia sepium and can be found by different colloquial names in various parts of the world

giving some rubies a slightly brownish or purplish tint

Golden Obsidian 10mm Round - 15-16 Inch DSforGB12272022 Some facts about OpalsGolden Obsidian is a naturally occurring volcanic glass, shiny black with a golden sheen. Obsidian is produced when lava erupts from a volcano and cools rapidly with minimal crystal growth. It is sometimes used for scalpel blades in cardiac surgery, as Obsidian can be formed into a blade many times sharper than steel surgical blades.