mineral
Almandine Garnet in Matrix or Tumbled Garnet
Iron Aluminum Silicate, Fe3Al2(SiO4)3
AI-generated identification · may be incorrectHardness of 6.5-7.5 on the Mohs scale, deep red to almost black color, vitreous to resinous luster, and isometric crystal system with conchoidal fracture.
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Physical properties
Hardness of 6.5-7.5 on the Mohs scale, deep red to almost black color, vitreous to resinous luster, and isometric crystal system with conchoidal fracture.
Formation & geological history
Forms in metamorphic rocks like schist and gneiss through regional metamorphism, as well as in igneous pegmatites.
Uses & applications
Used primarily in jewelry as a gemstone, and in industrial applications as an abrasive for waterjet cutting and sandblasting.
Geological facts
Garnets have been used as gemstones since the Bronze Age and were highly favored in Roman and Egyptian jewelry.
Field identification & locations
Identify by its characteristic dark red color, high hardness, and lack of cleavage. Commonly found worldwide in metamorphic terrains.
