With only limited amounts of this highly sought-after material remaining
Tourmaline occurs in nearly every color in the rainbow and its name derives from “turmali
a cryptocrystalline Quartz
The deposits within the rock become Turquoise after a chemical reaction occurs over long periods of time
Kyanite Multi 4mm Round - 15-16 Inch july_carnelian With only limited amounts ofKyanite 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