Demantoid Garnet
Andradite Garnet (variety Demantoid)
Precious Gemstone
What is Demantoid Garnet?
Demantoid garnet is a vibrant green gemstone prized for its brilliance and fire. It is a variety of andradite garnet, known for its high dispersion, which gives it a remarkable play of colors. Demantoid garnets are often found with distinctive horsetail inclusions, which are considered desirable by collectors.
Optical Properties
- Refractive Index
- 1.888 - 1.895
- Birefringence
- None
- Pleochroism
- None
- Optical Character
- Isotropic
- Dispersion
- 0.057
Demantoid Garnet Market Value Calculator
Estimate the market value of Demantoid Garnet using size, quality, and finish. This preview calculator is for quick context and is not a formal appraisal.
Demantoid Garnet Localities Map
See where Demantoid Garnet is found with a localities map, collecting zones, and geology context. Generate a sample map preview below.
Map preview
North ZoneCentral RidgeSouth Basin
Quick Facts
Physical Properties
- Color
- Green, yellowish-green, brownish-green
- Hardness (Mohs)
- 6.5 - 7
- Density
- 3.82 - 3.89 g/cm³
- Streak
- White
Chemical Properties
- Chemical Formula
- Ca3Fe2Si3O12
- Elements
- Calcium, Iron, Silicon, Oxygen
Also Known As
DemantoidUralian Emerald
FREE APP
4.7
Identify Demantoid Garnet Instantly
- Snap a photo, get instant results
- 6,700+ rocks, minerals & crystals
- Discover collecting spots near you