Black Tourmaline 7x8mm Faceted Swirl Oval - 15-16 Inch hps_04092026 It has a hardness of

It has a hardness of 8 on the Mohs hardness scale

or merlinite

characterized by its color range of black

Isaac’s Cathedral in St

deep-blue copper mineral produced by weathering of copper ore deposits

Black Tourmaline 7x8mm Faceted Swirl Oval - 15-16 Inch hps_04092026 It has a hardness ofBlack Tourmaline is a black crystalline aluminum borosilicate mineral with occasional light gray inclusions that appear as flecks or veins. Tourmaline 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