Cut gemstones possess all the physical properties of the mineral from which they are cut, although the crystal shape is no longer evident.
Gemstones & Minerals Of Australia
Gemstones - The Australian Museum
Pin by Barbra Colburn on Rocks/Minerals
Western Australian Museum in Perth City Centre - Tours and
GAA - Gemmological Association of Australia
Gemstones and Minerals of Australia : Lin, Lin, Sutherland, Gayle
Exclusive: Gem-like fossils reveal stunning new dinosaur species
GIA Gem Encyclopedia Complete List Of Gemstones
Gemstone, Definition, History, Types, & Facts