mineral
Quartz
Silicon Dioxide (SiO2)
AI-generated identification · may be incorrectHardness of 7 on the Mohs scale, vitreous luster, conchoidal fracture, hexagonal crystal system, specific gravity of 2.65, often clear, white, or tinted with various colors.
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Physical properties
Hardness of 7 on the Mohs scale, vitreous luster, conchoidal fracture, hexagonal crystal system, specific gravity of 2.65, often clear, white, or tinted with various colors.
Formation & geological history
Forms in a wide variety of geological environments including igneous, metamorphic, and sedimentary rocks. Often crystallizes from silica-rich hydrothermal veins and pegmatites.
Uses & applications
Used extensively in electronics, glassmaking, abrasive materials, gemstone carving, and ornamental objects.
Geological facts
Quartz is one of the most abundant minerals found in the Earth's continental crust and exhibits strong piezoelectric properties, making it useful in watches and electronic devices.
Field identification & locations
Easily identified by its characteristic crystal habit, high hardness (scratches glass), and conchoidal fracture. Found worldwide in almost all types of geological formations.
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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
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
Septarian Pebble
Septarian nodule / Concretion
sedimentary