Gemstone Colors - Grey
Adamite,
Analcime,
Andalusite,
Anhydrite,
Apophyllite,
Aragonite,
Augelite,
Austinite,
Axinite-(Mg),
Barite,
Boracite,
Bowenite,
Brucite,
Calcite,
Carrollite,
Cassiterite,
Catapleiite,
Cerussite,
Chalcedony,
Cordierite,
Creedite,
Datolite,
Diamond,
Diaspore,
Diopside,
Dolomite,
Fluorite,
Hemimorphite,
Hibonite,
Labradorite,
Lawsonite,
Lepidolite,
Leucite,
Marialite,
Meionite,
Milarite,
Mimetite,
Moonstone,
Musgravite,
Opal,
Orthoclase,
Pectolite,
Phosgenite,
Pollucite,
Powellite,
Prehnite,
Pyromorphite,
Quartz,
Rhodizite,
Richterite,
Sapphirine,
Scapolite,
Scheelite,
Scorodite,
Serendibite,
Sillimanite,
Smithsonite,
Sodalite,
Spinel,
Sunstone,
Taaffeite,
Wavellite,
Witherite,
Zektzerite