mineral
Quartz (Tumbled)
Silicon Dioxide (SiO2)
AI-generated identification · may be incorrectHardness of 7 on the Mohs scale, typically white or translucent, vitreous to greasy luster, hexagonal crystal system (though not visible in this tumbled form), conchoidal fracture, specific gravity of 2.65.
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Physical properties
Hardness of 7 on the Mohs scale, typically white or translucent, vitreous to greasy luster, hexagonal crystal system (though not visible in this tumbled form), conchoidal fracture, specific gravity of 2.65.
Formation & geological history
Formed in various geological environments including igneous, metamorphic, and sedimentary rocks, often crystallized from silica-rich hydrothermal veins over millions of years.
Uses & applications
Commonly used in jewelry, lapidary arts, decorative items, and metaphysical practices. Industrial uses include electronics, glassmaking, and precision instruments.
Geological facts
Quartz is the second most abundant mineral in Earth's continental crust and is well known for its piezoelectric properties.
Field identification & locations
Easily identified by its high hardness (scratches glass) and conchoidal fracture. Found worldwide in nearly every geological setting.
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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