Multi Tourmaline 6x10mm Rondelle - 15-16 Inch Stone Type_Elisa Turquoise It is a rare occurrence

It is a rare occurrence to find gem-grade hackmanite

grinding wheels and cutting disks

Only a small percentage of Wampum shells have deep layers of purple and are thick enough to make beads

It is opaque and occurs in a wide variety of colors

Multi Tourmaline 6x10mm Rondelle - 15-16 Inch Stone Type_Elisa Turquoise It is a rare occurrenceTourmaline 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