Blue Kyanite 5x10-20mm Top Drill Teeth - 15-16 Inch 1109202148HR Green is the most common

Green is the most common color for Aventurine

and comes in a range of other colors

Moonstone is a Feldspar mineral that was used in Roman jewelry nearly 2

Its needle to like inclusions of hematite are iridescent red

3-4 small ranging 15-20mm

Blue Kyanite 5x10-20mm Top Drill Teeth - 15-16 Inch 1109202148HR Green is the most commonKyanite 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