Blue Kyanite 6x12-10x20mm Free Form Pear A Grade - 15-16 Inch 4mm Matrix Blue/Green/Black created when silica hardens within

created when silica hardens within the fissures of other stones

and the wood used to make them is only available after natural disasters fell young trees

The boundaries of the included crystals are visible and are known as “phantoms

It was popular with the Greeks and Romans

olive green and gray to green

Blue Kyanite 6x12-10x20mm Free Form Pear A Grade - 15-16 Inch 4mm Matrix Blue/Green/Black created when silica hardens withinKyanite 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