Group Classification: Orthosilicate
General Chemical Formula: X3Y2(SiO4)3 Both X and Y are substituted with different elements depending upon the type of garnet.
- Pyralspites: pyrope, almandine, spessartine
- Ugrandites: uvarovite, grossular, andradite
General Identifying Properties of All Garnets:
- vitreous or glassy luster
- fracture or no cleavage
- equant habit
- found in mafic or ultramafic rocks
Commercial Uses: Used commonly as an abrasive, for grinding and polishing. Used within the timber industry.
Occurrence: Ubiquitous. One of the most common minerals.
- Pyrope: Mg3Al2(SiO4)3 deep red, common
- Almandine: Fe3Al2(SiO4)3 deep red, common
- Spessartine: Mn3Al2(SiO4)3 pink to violet, or amber/honey
- Uvarovite: Ca3Cr2(SiO4)3 emerald green
- Grossular: Ca3Al2(SiO4)3 pink, honey to brown, or light green
- Andradite: Ca3Fe2(SiO4)3 deep red, yellow, brown, or green, common
- represents passion and fidelity, red variety (GaML)
- protection in general and more specifically, against nightmares, red and pink varieties (GaML)
- other virtues include friendship, success, and confidence; helpful in social situations (GaML)
- abundance and financial success, green variety (GaML)
- possesses feminine power, the red variety was named after the word granatum, or pomegranite, which symbolizes the womb (GaML)
- red varieties represent invulnerability from wounds (TCLoPS)
- Mars (GaML)
- element of fire (GaML)
- Scorpio and Aquarius (GaML)
- January Birthstone...
If you would Cherish friendship true,
In Aquarius well you'll do
To wear this gem of warmest hue -
The garnet." (TCLoPS)