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