mineral
Clear Quartz Crystal
Silicon Dioxide (SiO2)
AI-generated identification · may be incorrectHardness: 7 (Mohs), Color: Colorless/Transparent, Luster: Vitreous (glassy), Crystal Structure: Hexagonal (Trigonal), Cleavage: None/Conchoidal fracture, Specific Gravity: 2.65
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Physical properties
Hardness: 7 (Mohs), Color: Colorless/Transparent, Luster: Vitreous (glassy), Crystal Structure: Hexagonal (Trigonal), Cleavage: None/Conchoidal fracture, Specific Gravity: 2.65
Formation & geological history
Forms in igneous, metamorphic, and sedimentary environments through the cooling of silica-rich molten rock (magma) or from hydrothermal veins.
Uses & applications
Extensively used in electronics (oscillators), watchmaking, glass making, abrasives, and as a popular gemstone for jewelry and metaphysical collecting.
Geological facts
Quartz is one of the most abundant and diverse minerals on Earth. It is piezoelectric, meaning it generates an electric charge when mechanical pressure is applied.
Field identification & locations
Identify by its six-sided prismatic habit, hardness (will scratch glass), and lack of cleavage. Found globally, extremely common in mountainous regions.
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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