mineral
Quartz Vein Specimen
Silicon Dioxide (SiO2)
AI-generated identification · may be incorrectMohs hardness of 7, vitreous luster, hexagonal crystal system, typically colorless to milky white, with no distinct cleavage.
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Physical properties
Mohs hardness of 7, vitreous luster, hexagonal crystal system, typically colorless to milky white, with no distinct cleavage.
Formation & geological history
Precipitates from hydrothermal fluids circulating through fractures in host rocks under varying temperatures and pressures.
Uses & applications
Used widely in electronics, glass manufacturing, abrasives, and as ornamental or collector specimens.
Geological facts
Quartz is one of the most abundant minerals on Earth's continental crust and is chemically resistant to weathering.
Field identification & locations
Identified in the field by its hardness (scratches glass/steel), conchoidal fracture, and resistance to acid; extremely common globally in rocky terrains.
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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
Epidote
Epidote | Ca2(Al2,Fe3+)(SiO4)(Si2O7)O(OH)
metamorphic
Pegmatite with Tourmaline and Quartz
Igneous Pegmatite
igneous
Granite
Granite (Phaneritic intrusive igneous rock)
igneous