Abalone Shell 15mm Flat Coin - 15-16 Inch R0917 Onyx has been both revered

Onyx has been both revered and feared throughout history

The fibrous asbestos inclusions in the stone give it the flash that inspired its name

or subject it to pressure

Legend has it that it came to the world

sold a piece of Green Tourmaline to Tiffany & Co

Abalone Shell 15mm Flat Coin - 15-16 Inch R0917 Onyx has been both reveredAbalone Shell is strong and is made of stacked calcium carbonate tiles. When the abalone shell is struck, the tiles slide instead of shattering absorbing the energy of the blow. The inner layer of the shell is composed of nacre (mother of pearl), which in many species is highly iridescent, which make the shells attractive as decorative objects, jewelry, and as a source of colorful mother of pearl.