Natural Demantoids Overview
This is a pale to clear green variety of andradite garnet, regarded as being comparable in luster to diamond; hence the name, attributed to it in the latter half of the nineteenth century.
The color varies from a cold, very pale green (almost colorless with a green wash), to a mid or strong green, not as a rule a very lively color and similar to certain shades of green in tourmaline, zircon, or olivine.
It often has good transparency and exceptional luster. Inclusions in the form of fine, curved fibers of asbestos are frequent and characteristic.
These stones are usually given round, mixed, and brilliant cuts; more rarely, square or rectangular, step cuts. They are normally small. Specimens of more than one carat are uncommon, and those of several carats are extremely rare. Due to weakening inclusions the facets and edges are easily damages with use.
Physical Properties
| Color |
Green, emerald green |
| Refractive Index |
1.88-1.94 |
| Chemistry |
Calcium, Iron silicate |
| Hardness |
6.5-7.5 |
| Density |
3.7-4.1 |
| Crystal Group |
Amorphous |
| Ocurrence |
China, Korea, Russia, USA, Zaire |
Legend and Lore
Browse Demantoids
The pictures above only represents the general appearance of the Demantoid. Please note that the real Demantoids in our stock will be of varied shapes, color and sizes.
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