Blue Kyanite 8mm Round - 15-16 Inch Multi to Picasso soft and fragile

soft and fragile

It is a particularly unusual gem because it exhibits a special optical property known as "tenebrescence

igneous rock with high silica content

Turquoise beads found in Iraq date back to 5000 BCE

Green Apatite is a transparent to translucent stone that may be green

Blue Kyanite 8mm Round - 15-16 Inch Multi to Picasso soft and fragileKyanite 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