Tourmaline has always been used to make jewelry and art objects. Even today it is still used as a decorative stone. However, in ancient times it has very different external appearances, which have all the colors of the rainbow, it was often confused with other stones. The red tourmaline was therefore called "carbuncle" in the Middle Ages, just like the ruby or garnet. Green Tourmalines were also confused with emeralds, etc. Its current name only became established in the 18th century. It comes from the Singhalese (turmali) and means translated "different stone". The characteristic of tourmaline is its great variety of colors. At that time it was believed that this gemstone could shine from within itself. The reason is that tourmaline is a very good conductor and can be charged electrostatically through friction and heat.
Features of Tourmaline Beads
Crystallography: Hexagonal (trigonal)Mohs hardness: 7-7.5Birthstone: OctoberTypical treatments: Bleaching, Fracture/Cavity Filling, Heat Treatment, IrradiationOccurrence: Brazil / Nigeria / Afghanistan, etc.