QTY 1 - Medium Black Obsidian Round Disc / 5" dia avg. Menu arrowhead pendants although it was not known

although it was not known as a distinct gemstone until the 1700s

Unlike its more traditionally blue

Pieces measure about 3" (AVERAGE SIZE)

its green to blue-green hues reflecting the geological processes involving the incorporation of copper and other trace elements during mineral growth

Formed when boron forms compounds with iron-sodium molecules

QTY 1 - Medium Black Obsidian Round Disc / 5" dia avg. Menu arrowhead pendants although it was not knownBlack Obsidian Round Disc Origin: Mexico Pieces measure approximately 5" (AVERAGE SIZE) The picture is an example ONLY. This listing is for a 100% natural product. Please allow for variation in size, shape, color, and formation. Randomly selected gemstones, cherry picking requests can not be fulfilled. CRYSTAL RIVER GEMS WHOLESALE BULK **Fast domestic and international shipping**