Green Kyanite 5-10x22-30mm Teeth - 15-16 Inch Stone Type_Biotite but can be distinguished by

but can be distinguished by its structure and its lower relative hardness

Care Tips:

It's also known as Angelita and Angelite Quartz

and Egyptians were mining the stone as early as 3200 BCE

These form as a criss cross banding called lamellae

Green Kyanite 5-10x22-30mm Teeth - 15-16 Inch Stone Type_Biotite but can be distinguished byKyanite 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