Tourmaline 6mm Round Banded - 15-16 Inch Goethite in Amethyst Its color is due to

Its color is due to the presence of Manganese and Iron in the stone

White Howlite is named for Canadian mineralogist Henry How

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

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

Tourmaline 6mm Round Banded - 15-16 Inch Goethite in Amethyst Its color is due toTourmaline 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