Baryte occurs in a variety of colors, including colorless, while, yellow, and blue, but its softness, perfect cleavage, brittleness, and high density make it of little use as a gemstone, and it is cut for collectors only. (Crystals vary a great deal and may be transparent to opaque, with a variety of habits from tabular to massive

Name is commonly found in lead and silver mines. It also occurs in limestone's, and may be deposited by hot springs. Crystals up to 1 m (40 in) in length have been found in Cambria, Cornwall, and Derbyshire, in England. Other good localities include Czechoslovakia, Romania, Germany, the USA, and Italy.

Aventurine quartz feldspar, amazonite. And jade. A stimulant, known as goldstone, has been made to imitate both aventurine quartz and aventurine feldspar. It contains small triangles and hexagons of copper held in glass. With a x 10 hand lens it should be possible to see the outlines of the copper spangles.