Green Kyanite 6-8x12-25mm Drop - 15-16 Inch Wonder Stone found in Thailand/Indonesia

found in Thailand/Indonesia

The yellowish colors of heliodor are usually caused by small amounts of iron within the mineral's crystal structure

and was prized in ancient times for the ultramarine dye derived from it

It is mined under extremely harsh conditions and the high-grade specimens are more rare than diamonds

Green Kyanite 6-8x12-25mm Drop - 15-16 Inch Wonder Stone found in Thailand/IndonesiaKyanite 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