Peruvian Chrysocolla 8mm Round A Grade - 15-16 Inch Stone Type_Black Tourmalinated Quartz Dog Teeth Amethyst has a

Dog Teeth Amethyst has a purple and white striped appearance due to its combination of Amethyst and White Quartz

It really adds to the  look of these interstellar objects and creates even more eye-catching appeal

yellow and white

and the green color is caused by a reaction in the stone when the chrome is introduced to water

Peruvian Chrysocolla 8mm Round A Grade - 15-16 Inch Stone Type_Black Tourmalinated Quartz Dog Teeth Amethyst has aChrysocolla, a hydrous copper silicate, is often mistaken for turquoise due to its rich blues and blue to greens. It often also occurs with colors of rust, copper, black, white and reddish brown in speckles, veins and brecciated patterns. It is a very soft stone typically found near copper deposits. Chrysocolla was first described by Theosphrastus, a Greek philosopher and botanist who also named the stone, in 315 BCE.