Demantoid is the green variety of andradite garnet. Dispersion is higher than diamond, which gives it fire. Horsetail inclusions of chrysotile are typical of some Russian stones.
This page is only for Demantoid. Comments below are for this material.
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Demantoid
Specimen Details
- Hardness (Mohs): 6.5–7
- Chemical Formula: Ca3Fe2(SiO4)3
- Crystal System: Isometric
- Size: Specimen size varies; record the piece, not the species