Spessartine Crystal
Spessartine
Formula: Mn₃Al₂Si₃O₁₂
System: Isometric
Colour: Red, reddish orange, ...
Lustre: Vitreous
Hardness: 6½ - 7½
Spessartine, like other garnets, possesses high refractive index and hardness, making it suitable for use as a gemstone. However, its transparency and clarity can vary, with larger, gem-quality stones being relatively rare. Additionally, unlike some other garnets like pyrope and almandine, Spessartine often lacks strong dispersion (fire), potentially affecting its brilliance.
![]() |
From from East Grants Ridge, New Mexico, USA Photo by: © Tóth László |
System: Isometric
Colour: Red, reddish orange, ...
Lustre: Vitreous
Hardness: 6½ - 7½