brown phlogopite and clear muscovite
Andalusite was first discovered in the Andalusia region of Spain
Green Apatite is a transparent to translucent stone that may be green
Abalone Shell is strong and is made of stacked calcium carbonate tiles
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Blue Nepal Kyanite 2x4-3x5mm Graduated Faceted Rondelle Necklace - 15-16 Inch Iron Zebra Jasper brown phlogopite and clear muscoviteKyanite 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