Apophyllite

Apophyllite is a mineral with a distinctive crystal structure and aesthetic qualities that make it popular in decorative arts. Its chemical composition is a hydrous calcium potassium fluorosilicate, and it is typically colorless or white, with occasional green or yellow tints. The crystal habit of apophyllite is typically prismatic or tabular, with a square or rectangular cross-section. Its unique properties make it a desirable material for creating decorative objects such as jewelry, sculptures, and other artistic works.