Onyx 8x11mm Leaf - 8 Inch R1766 Obsidian is produced when lava

Obsidian is produced when lava erupts from a volcano and cools rapidly with minimal crystal growth

from which its name was derived

Azurite often occurs with green Malachite

along with the dendritic inclusions of manganese and iron typical of Moss Agate

which were used in amulets and talismans to ward off negative energies and bring good luck

Onyx 8x11mm Leaf - 8 Inch R1766 Obsidian is produced when lavaOnyx is a black and white banded Chalcedony, a cryptocrystalline Quartz. It is often thought of as an all to black stone, and much of the black Onyx on the market has been artificially colored. Onyx has been both revered and feared throughout history. It is referenced in many sacred texts and historical manuscripts and is the first precious stone mentioned in the Bible. However in some regions, such as China, it was feared for centuries as a bad luck