mineral
Almandine Garnet
Iron Aluminum Silicate (Fe3Al2(SiO4)3)
AI-generated identification · may be incorrectHardness 7.5 on Mohs scale; dark red to brownish-black color; vitreous to resinous luster; isometric crystal system.
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Physical properties
Hardness 7.5 on Mohs scale; dark red to brownish-black color; vitreous to resinous luster; isometric crystal system.
Formation & geological history
Forms within metamorphic rocks like schists and gneisses via regional metamorphism of aluminous sediments.
Uses & applications
Utilized as an abrasive in waterjet cutting, sandblasting, and as a semi-precious gemstone in jewelry.
Geological facts
Almandine is the most common garnet species and derives its name from Alabanda, an ancient Asian minor town.
Field identification & locations
Identified by its deep red hue, high hardness, and distinct dodecahedral or trapezohedral crystal habits.
More like this
Other mineral specimens
Gneiss or Schist
Gneiss or Mica Schist with Garnet
Metamorphic
Sandstone (with potential mineral staining/concretions)
Arenite (SiO2 based)
sedimentary
Tumbled granite
Granite, a coarse-grained felsic intrusive igneous rock
igneous
Pegmatite with Tourmaline and Quartz
Igneous Pegmatite
igneous
Epidote
Epidote | Ca2(Al2,Fe3+)(SiO4)(Si2O7)O(OH)
metamorphic
Granite
Granite (Phaneritic intrusive igneous rock)
igneous