Multi Tourmaline 6x12mm Chip Bead - 15-16 Inch 2-2.5mm It contains inclusions such as

It contains inclusions such as copper and iron

4 Inches / 40x60mm / 4x6cm

almost black glass with flecks of copper suspended within it

Smoky Quartz it the national gem of Scotland

Multi Tourmaline 6x12mm Chip Bead - 15-16 Inch 2-2.5mm It contains inclusions such asTourmaline 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