Multi Tourmaline 8mm Round Large Hole Beads - 8-inch Size_5mm Sardonyx is sometimes treated to

Sardonyx is sometimes treated to bring out its reddish tones

It has been discovered with artifacts from cultures of the Neolithic Period

Mookaite is formed by the ancient skeletal remains of radiolaria

This item is treated and dyed agate

Multi Tourmaline 8mm Round Large Hole Beads - 8-inch Size_5mm Sardonyx is sometimes treated toTourmaline 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