mineral
Peridot
Olivine ((Mg,Fe)2SiO4)
AI-generated identification · may be incorrectHardness of 6.5-7 on the Mohs scale, olive-green color, vitreous luster, and an orthorhombic crystal system with conchoidal fracture.
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Physical properties
Hardness of 6.5-7 on the Mohs scale, olive-green color, vitreous luster, and an orthorhombic crystal system with conchoidal fracture.
Formation & geological history
Forms in the Earth's upper mantle under high temperatures and pressures, brought to the surface via volcanic activity.
Uses & applications
Used primarily as a gemstone in jewelry and occasionally in refractory materials.
Geological facts
Peridot is one of the few gemstones that occurs in only one color: green. Some specimens originate from pallasite meteorites.
Field identification & locations
Identified by its distinctive olive-green hue and conchoidal fracture; commonly found in Arizona, China, and Pakistan.
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Gneiss or Schist
Gneiss or Mica Schist with Garnet
Metamorphic
Limonite
FeO(OH)•nH2O
mineral
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