Gadolinite group
Gadolinite-(Y)
Gageite
Gahnite
Galaxite
Galena
Galenobismutite
Gamagarite
Ganophyllite
Garnet group
Garnierite
Garronite
Gaspéite
, Gaspeite
Gaylussite
Gedrite
Geerite
Gehlenite
Geigerite
Geikielite
Genthelvite
Geocronite
Germanite
Germarite
Gersdorffite
Getchellite
Gibbsite
Giraudite series
Gismondine
Gismondine-Ca
Gittinsite
Glauberite
Glaucocerinite group
Glaucochroite
Glaucodot
Glauconite series
Glauconite/Smectite interstratified mineral
Glaucophane
Glaukosphaerite
Glendonite
Gmelinite series
Gmelinite-Ca
Gmelinite-K
Gmelinite-Na
Gobbinsite
Gobelinite
Godlevskite
Godovikovite
Goethite
Gold
Goldfieldite
Goldfieldite series
Goldmanite
Gonnardite
Gorceixite
Gormanite
Goslarite
Goyazite
Graftonite
Grandite
Graphite
Gratianite
Gratonite
Grayite
Greenalite
Greenockite
Greigite
Grossular
Grossularite
Groutite
Grunerite
Guérinite
, Guerinite
Gugiaite
Gunmaite
Gurhofian
Gustavite
Gutkovaite group
Gypsum
Gyrolite