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75 inches (12
Rhyolite or Tuff
or x-ray analysis
These flecks glitter as they catch the light and may appear white against the dark blue of the glass
but unlike rubies
Blue Kyanite 8mm Round - 15-16 Inch Faceted Nugget 75 inches (12Kyanite 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
US$ 119.00
US$ 129.00
US$ 39.00