Tourmaline 6mm Round Banded - 15-16 Inch Goethite in Amethyst many people believe that diamonds

many people believe that diamonds are formed from coal

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

Weight: grams: 270-400 grams

Sometimes called the "Black Prince's Ruby" for its role in the English crown

This dye was said to create Michelangelo’s favorite shade of blue

Tourmaline 6mm Round Banded - 15-16 Inch Goethite in Amethyst many people believe that diamondsTourmaline 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