Kyanite Multi 4mm Round - 15-16 Inch Color_Blue Rainbow Obsidian is said to

Rainbow Obsidian is said to help alleviate fears at home or work that seem overwhelming or that we seem to not be able to overcome

almost black glass with flecks of copper suspended within it

It's a beautiful specimen

due to variations in iron content

many people believe that diamonds are formed from coal

Kyanite Multi 4mm Round - 15-16 Inch Color_Blue Rainbow Obsidian is said toKyanite 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