Green Kyanite 6-8x12-25mm Drop - 15-16 Inch Druse and it has been used

and it has been used throughout history for various purposes

As a Serpenti

Tourmaline occurs in nearly every color in the rainbow and its name derives from “turmali

This variety of Amazonite is actually a combination of Amazonite

Hackmanite is the light pink to pale violet variety of sodalite

Green Kyanite 6-8x12-25mm Drop - 15-16 Inch Druse and it has been usedKyanite 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