Yellow Green Tourmaline 3mm Banded Table Cut Cube A Grade Bead - 15-16 Inch birthstone_tanzanite until the 17th century Crystal

until the 17th century Crystal Quartz was believed to be permanently frozen water

second only to Diamond

gold and brown

Chiastolite is also known as the Cross Stone for the cross matrices of browns

An aluminum silicate mineral

Yellow Green Tourmaline 3mm Banded Table Cut Cube A Grade Bead - 15-16 Inch birthstone_tanzanite until the 17th century CrystalTourmaline 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