White Howlite 30mm Coin 8-Inch birthstone_tourmaline It may also contain rainbow-colored

It may also contain rainbow-colored or sparkling inclusions

there may not be a more beautiful blue-and-brown combination than that of Terra Agate

also known as Rainbow Jasper

the second-hardest mineral next to diamond

White Howlite 30mm Coin 8-Inch birthstone_tourmaline It may also contain rainbow-coloredWhite Howlite is named for Canadian mineralogist Henry How, who first discovered the stone in Southern California in 1868. It is typically white or light gray with gray, black or brown veins running through it in web like patterns. Because of its softness, Howlite can be easily dyed and is often treated to be blue for use as a substitute for turquoise.