Pleochroic Gems Parti Coloured Gems Idiochromatic Gems Allochromatic Gems
Pavilion Facet Crown Lapidiary
Beryl Olivine Tourmaline Dioptase
Hematite Chrysoberyl Spinel Corundum
Fluorite Halite Sodalite Carnallite
Topaz Spodumene Beryl Tourmaline
Corundum Iolite Peridot Watermelon Tourmaline