Multi Tourmaline 4mm Faceted Coin Beads - 15-16 Inch Good Luck Jewelry Diopside is a calcium and

Diopside is a calcium and magnesium silicate mineral

and pattern

and was prized in ancient times for the ultramarine dye derived from it

A variety of Andalusite

Multi Tourmaline 4mm Faceted Coin Beads - 15-16 Inch Good Luck Jewelry Diopside is a calcium andTourmaline 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 this variety of colors, Tourmaline has often been confused with other stones. Many stones in the Russian crown jewels from the 17th century