Kyanite Multi 8mm Round - 15-16 Inch Lapis ” It is one of

” It is one of the most sought to after minerals among gem and mineral collectors

A natural blue form of calcium sulfate

The name "biotite" is used because these minerals generally cannot be distinguished without optical

Natural Turquoise may be cut and polished

first known as saualpite

Kyanite Multi 8mm Round - 15-16 Inch Lapis ” It is one ofKyanite often occurs as long, bladed, striated crystals, transparent or translucent with a pearly luster. An aluminum silicate mineral, it may appear in white, pink, yellow, orange, green, blue, gray and black. In addition to its value as a gemstone, Kyanite is also extremely useful in industrial applications due to its high heat resistance. It is often used in kiln furniture and foundry molds, as well as for brake shoes, grinding wheels and cutting