mineral
Quartz Crystal
Silicon Dioxide (SiO2)
AI-generated identification · may be incorrectHardness of 7 on the Mohs scale, transparent to translucent color with vitreous luster, and a hexagonal crystal system with conchoidal fracture.
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Physical properties
Hardness of 7 on the Mohs scale, transparent to translucent color with vitreous luster, and a hexagonal crystal system with conchoidal fracture.
Formation & geological history
Forms in hydrothermal veins, pegmatites, and sedimentary environments globally through the cooling and precipitation of silica-rich solutions.
Uses & applications
Widely used in electronics, oscillator clocks, ornamental jewelry, and glass manufacturing.
Geological facts
Quartz is one of the most abundant minerals in Earth's continental crust and exhibits piezoelectric properties.
Field identification & locations
Easily identified by its distinctive hexagonal crystal termination and inability to be scratched by a steel knife.
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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