D-E-F-G Danburite Diamond Diopside Dioptase Dolomite Emerald Epidote Fluorite Fulgerite Galena Garnet Almandine Garnet Andradite Garnet Hessonite Garnet Pyrope Garnet Spessartine/Spessartite Garnet Tsavorite Garnet Gel Lithium Silica Gem Silica