Blue Kyanite 10mm Round - 15-16 Inch R1851 yellow to green or sea

yellow to green or sea to green in color

any color of the rainbow

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

who used it extensively in their jewelry

creating a beautiful blend of pink and green in mottled patterns

Blue Kyanite 10mm Round - 15-16 Inch R1851 yellow to green or seaKyanite 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