Grossular Garnet
Grossular
A variety of Garnet Group
Precious GemstoneUncommon
What is Grossular Garnet?
Grossular Garnet was named after the Greek word "grossularia" which means "gooseberry" and it refers to the green color this mineral is often found in, although it can be orange, black, brown, cream, or even colorless. Reddish-brown and pink specimens are most commonly used for faceted gems, known by the name "cinnamon stone."
Optical Properties
- Refractive Index
- 1.730-1.760
- Optical Character
- Isotropic
- Dispersion
- 0.02
Discover Values
Rarity
4.0out of 5.0
80%
Popularity
3.7out of 5.0
74%
Beauty
4.1out of 5.0
82%
Cultural Value
4.0out of 5.0
80%
Collection Value
4.1out of 5.0
82%
Grossular Garnet Market Value Calculator
Estimate the market value of Grossular Garnet using size, quality, and finish. This preview calculator is for quick context and is not a formal appraisal.
Grossular Garnet Localities Map
See where Grossular 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
- Brown, orange, red, yellow, green, white, colorless
- Hardness (Mohs)
- 6.5 - 7
- Density
- 3.594 g/cm³
- Streak
- White to pale Brownish white
- Luster
- Vitreous, Sub-vitreous
- Crystal System
- Isometric
Chemical Properties
- Chemical Formula
- Ca3Al2(SiO4)3
- Elements
- Al, Ca, O, Si
Also Known As
Grossular GarnetGrossulariteErniteKanelsteinPechgranat
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