Spessartine
A manganese aluminium garnet named after Bavaria's Spessart region.
Spessartine is a manganese aluminium garnet species, Mn2+3Al2(SiO4)3, named after the Spessart region in Bavaria, Germany. It occurs in granite pegmatites and low-grade metamorphic phyllites, forming a solid solution series with almandine.
Quick Facts
- Category
- Nesosilicate; Garnet group
- Formula
- Mn; 2+, 3; Al; 2 (SiO; 4;); 3
- IMA symbol
- Sps
- Strunz classification
- 9.AD.25
- System
- Isometric
- Symmetry
- Ia3d
- Habit
- Massive to crystalline
- Fracture
- Sub-conchoidal
Facts from the source article.
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