Tourmaline 4-6x8-9mm Irregular Rondelle Bead - 15-16 Inch Shape_ It is the green form

It is the green form of Beryl

known as a “Gem of Fire” by ancient cultures

or changeable inner luster

Aquamarine

Agate is one of many varieties of banded Chalcedony

Tourmaline 4-6x8-9mm Irregular Rondelle Bead - 15-16 Inch Shape_ It is the green formTourmaline 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