The inclusions are of manganese or iron
while maintaining the wood's original structure
A variety of Andalusite
· Finish: Electroplated with a nickel-free gold plating
though it also can occur in dark brown and golden colors
Blue Kyanite 10mm Round - 15-16 Inch Inc. The inclusions are of manganeseKyanite 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