Green Kyanite 6-8x12-25mm Drop - 15-16 Inch Wonder Stone Our Red Terra Agate is

Our Red Terra Agate is dyed to give a unique

Pink Opal is a variety of non to precious opal

and was prized in ancient times for the ultramarine dye derived from it

The yellowish colors of heliodor are usually caused by small amounts of iron within the mineral's crystal structure

Green Kyanite 6-8x12-25mm Drop - 15-16 Inch Wonder Stone Our Red Terra Agate isKyanite 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