mineral
Clear Quartz Heart
Silicon Dioxide (SiO2)
AI-generated identification · may be incorrectMohs hardness 7, colorless to white, vitreous luster, trigonal crystal system, conchoidal fracture, specific gravity 2.65.
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Physical properties
Mohs hardness 7, colorless to white, vitreous luster, trigonal crystal system, conchoidal fracture, specific gravity 2.65.
Formation & geological history
Forms in hydrothermal veins and pegmatites worldwide through the cooling and precipitation of silica-rich fluids over millions of years.
Uses & applications
Used in electronics, oscillators, decorative items, jewelry, and crystal healing.
Geological facts
Quartz is the second most abundant mineral in Earth's continental crust and exhibits strong piezoelectric properties.
Field identification & locations
Identified by its high hardness, lack of cleavage, and glassy luster; commonly found globally in almost all geological environments.
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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
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