Silver Obsidian 8mm Large Hole Round - 8 Inch Drop Pendant Botswana Agate displays highly defined

Botswana Agate displays highly defined parallel banding

Silica-rich waters create hardened deposits that preserve coral skeletons

An aluminum silicate mineral

and other blush or beige hues

It is highly prized for its beautiful combinations of colors and for its opalescence — the pearly luster of the opaque stone

Silver Obsidian 8mm Large Hole Round - 8 Inch Drop Pendant Botswana Agate displays highly definedEssentially a volcanic glass, Obsidian ranges in color from opaque black, to green, brown, mahogany, black with rainbow colors, black with snowflake patterns, black with a golden sheen, and translucent black (Apache Tears)