Green Kyanite 9x13-12x16mm Top Drill Irregular Flat Drop - 15-16 Inch Stone Type_Dendritic Opal Onyx is a black and

Onyx is a black and white banded Chalcedony

It is believed to be a powerful crystal of Violet Ray energy

African Green Jasper is a single to colored opaque stone

Opalite is known by several other names

Due to its color and clarity

Green Kyanite 9x13-12x16mm Top Drill Irregular Flat Drop - 15-16 Inch Stone Type_Dendritic Opal Onyx is a black andKyanite 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