mineral
Quartz Crystal Cluster
Silicon Dioxide (SiO2)
AI-generated identification · may be incorrectHardness of 7 on the Mohs scale, transparent to translucent with a vitreous luster, and crystallizes in the trigonal system.
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Physical properties
Hardness of 7 on the Mohs scale, transparent to translucent with a vitreous luster, and crystallizes in the trigonal system.
Formation & geological history
Formed through hydrothermal precipitation from silica-rich fluids within rock cavities and fissures over millions of years.
Uses & applications
Used in electronics, watchmaking, precision optical lenses, and as popular mineral specimens for display and jewelry.
Geological facts
Quartz is one of the most abundant minerals in Earth's continental crust and exhibits strong piezoelectric properties.
Field identification & locations
Easily identified by its characteristic hexagonal crystal prism shape and scratch resistance against steel; found worldwide.
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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