An Apophyllite gemstone from Jalgoan, India.
Also known as Fluoro-Apophyllite, this gem variety is distinguished from other members of the Apophyllite family by its high Fluorine content and forms as orthorhombic crystals.
Its low hardness, 4.00-4.50 on Moh's scale, its brittle tendency and its perfect cleavage mean that faceted gems are rarely seen.
weight: 2.79 carats
shape: Square step cut
dimensions: 9.11 x 9.02 x 6.56 mm