Blue Kyanite 10mm Round - 15-16 Inch R1851 who used it extensively in

who used it extensively in their jewelry

yellow to green or sea to green in color

creating a beautiful blend of pink and green in mottled patterns

any color of the rainbow

Obsidian is produced when lava erupts from a volcano and cools rapidly with minimal crystal growth

Blue Kyanite 10mm Round - 15-16 Inch R1851 who used it extensively inKyanite 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