| 0 | GADOLINITE (Yttrium Iron Beryllium Silicate) |
| 0 | GAHNITE (Zinc Aluminum Oxide) |
| * | GALENA (Group) |
| Sale! 6 | GALENA (Lead Sulfide) |
| * | GARNET (Group) |
| 0 | GASPEITE (Nickel Magnesium Iron Carbonate) |
| 0 | GAYLUSSITE (Hydrated Sodium Calcium Carbonate) |
| 0 | GERSDORFFITE (Nickel Arsenide Sulfide) |
| 0 | GIBBSITE (Aluminum Hydroxide) |
| 0 | GLAUBERITE (Sodium Calcium Sulfate) |
| 0 | GLAUCOPHANE (Sodium Magnesium Iron Aluminum Silicate Hydroxide) |
| 0 | GMELINITE (Hydrated Sodium Calcium Aluminum Silicate) |
| 0 | GOETHITE (Hydrated Iron Oxide) |
| 0 | GOLD (Au) |
| 0 | GOOSECREEKITE (Hydrated Calcium Aluminum Silicate) |
| 0 | GORMANITE (Hydrated Iron Magnesium Aluminum Phosphate Hydroxide) |
| 0 | GOSHENITE (variety of Beryl, Berylium Aluminum Silicate) |
| 0 | GRAEMITE (Hydrated Copper Tellurate) |
| 0 | GRAPHITE (Carbon) |
| 0 | GRATONITE (Lead Arsenic Sulfide) |
| 0 | GREENOCKITE (Cadmium Sulfide) |
| Sale! 1 | GROSSULAR (Calcium Aluminum Silicate) |
| 0 | GYPSUM (Hydrated Calcium Sulfate) |
| 0 | GYROLITE (Hydrated Calcium Silicate Hydroxide) |