Plum Tourmaline 10mm Round - 15-16 Inch 48hr_11212023 Tourmaline and Pyrite

Tourmaline and Pyrite

it lightens because of further weathering and becomes Malachite

is an iridescent composite of organic and inorganic material most known for being the coating of pearls

It is not a mineral

Plum Tourmaline 10mm Round - 15-16 Inch 48hr_11212023 Tourmaline and PyriteTourmaline 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