| Elements | Gem |
| Carbon | |
| Silicon Carbide | |
| Aluminum Oxide doped with Chromium | |
| Aluminum Oxide | |
| Compound of Berylium, Aluminum, Silicon and Oxygen doped with Chromium | |
| Compound of Berylium, Aluminum, Silicon and Oxygen doped with Iron | |
| Sodium Aluminum Iron Silicate | |
| Calcium Magnesium Iron Silicate Hydroxide | |
| | Elements | Gem |
| Magnesium and Iron Silicon Oxide | |
| Silicon Oxide | |
| Succinic acid (Carbon, Hydrogen, Oxygen) | |
| Hydrated Silicon Dioxide. | |
| Beryllium Aluminum Oxide | |
| Aluminum Silicate Fluoride Hydroxide. | |
| Hydrated Copper Aluminum Phosphate | |
|