Demantoid Garnet
Dilanka Gems & Jewelry
SKU: 1
| Demantoid Garnet (a variety of andradite garnet) | |
| Composition | Ca3Fe2(SiO4)3 |
| Hardness (Mohs) | 6.5 to 7 |
| Specific Gravity | 3.84 |
| Refractive Index | 1.888; Singly refractive |
| Crystal System | Cubic |
| Colors | Light to deep green |
| Pleochroism | None |
| Dispersion | 0.057; this is among the highest of all gems, even higher than diamond |
| Phenomena | None |
| Handling | Ultrasonic: generally safe, but risky if the gem contains liquid inclusions Steamer: not safe The best way to care for demantoid garnet is to clean it with warm, soapy water. Avoid exposing it to heat or acids. |
| Enhancements | Some demantoid is heat treated to improve the color |
| Synthetic available? | No |
