Tourmaline 4x4-8mm Banded Faceted Tube - 15-16 Inch Size_23x29mm and forms naturally as a

and forms naturally as a glassy

Tourmaline is unusual in that it is both pyroelectric and piezoelectric

as well as brown to reddish brown or red in color

and Rutile as well

thought to be derived from trace amounts of titanium

Tourmaline 4x4-8mm Banded Faceted Tube - 15-16 Inch Size_23x29mm and forms naturally as aTourmaline 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