mineral
Tumbled Quartz
Silicon Dioxide (SiO2)
AI-generated identification · may be incorrectHardness of 7 on the Mohs scale, white to pale yellow color, vitreous luster, hexagonal crystal system, and no cleavage.
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Physical properties
Hardness of 7 on the Mohs scale, white to pale yellow color, vitreous luster, hexagonal crystal system, and no cleavage.
Formation & geological history
Forms in hydrothermal veins and pegmatites through the cooling of silica-rich fluids over geological time.
Uses & applications
Used widely in lapidary arts, jewelry, spiritual practices, and as decorative tumbled stones.
Geological facts
Quartz is one of the most abundant minerals on Earth and exhibits piezoelectric properties.
Field identification & locations
Easily identified by its high hardness, conchoidal fracture, and lack of reactivity to acid.
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Other mineral specimens
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