mineral
Garnet
Silicate mineral group (e.g., Almandine, Fe3Al2(SiO4)3)
AI-generated identification · may be incorrectHardness of 6.5-7.5 on the Mohs scale, typically deep red to brown in color, vitreous to resinous luster, and crystallizes in the isometric system.
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Physical properties
Hardness of 6.5-7.5 on the Mohs scale, typically deep red to brown in color, vitreous to resinous luster, and crystallizes in the isometric system.
Formation & geological history
Forms in metamorphic and igneous rocks through high-temperature and high-pressure recrystallization over millions of years.
Uses & applications
Used extensively as an abrasive in waterjet cutting, as a semi-precious gemstone in jewelry, and in filtration media.
Geological facts
Garnets have been used as gemstones since the Bronze Age and were highly favored by ancient Roman and Egyptian jewelers.
Field identification & locations
Identify by its distinctive rounded crystal habit (dodecahedron or trapezohedron) and lack of cleavage; commonly found in schist, gneiss, and stream placers.
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