Tourmaline 6mm Round Banded - 15-16 Inch Goethite in Amethyst the resulting rock is dark

the resulting rock is dark gray to deep black in color and riddled with pits and holes where air was trapped in the stone

each cavity is slightly larger (or smaller) than the other to give the user the ability to tighten the crimp properly

creativity

Weight: grams: 270-400 grams

often with a mottled appearance

Tourmaline 6mm Round Banded - 15-16 Inch Goethite in Amethyst the resulting rock is darkTourmaline 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