Black Tourmaline 8mm Round A Grade - 15-16 Inch Tone Diopside is a calcium and

Diopside is a calcium and magnesium silicate mineral

The combination of color and pattern variation are reminiscent of Red Creek Jasper

creamy white to pale gray or beige

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

Black Tourmaline 8mm Round A Grade - 15-16 Inch Tone Diopside is a calcium andBlack Tourmaline is a black crystalline aluminum borosilicate mineral with occasional light gray inclusions that appear as flecks or veins. Tourmaline is classified as a semiprecious stone and occurs in a vast array of colors, everything from colorless to black, from pastel to bright to dark. It can even exhibit various colors within the same specimen. Its name derives from the Sinhalese word turamali, which translates to stone of many colors. Due to