Purple "Pimpleback" Shell 8mm Faceted Coin Bead - 15-16 Inch Rainbow Tiger Eye a meteorite builds up heat

a meteorite builds up heat that is then released into the terrestrial rocks with which it collides

while its variations in color are better known by other names: Emerald (green)

it is born in the molten rock of the upper mantle

rainbow effect of light refracting off of the air bubbles inside of the stone

The Lone Mountain turquoise mine was rediscovered in 1920 by Lee Hand

Purple "Pimpleback" Shell 8mm Faceted Coin Bead - 15-16 Inch Rainbow Tiger Eye a meteorite builds up heatA "pimpleback" is a freshwater mussel (Cyclonaias pustulosa) common in North American rivers, characterized by a thick, yellow brown to brown shell covered in bumps (pustules). While not typically purple, the inner lining (nacre) can be iridescent, and related species in the pimpleback complex are sometimes found in Texas waters.