mineral
Tumbled Quartz
Silicon Dioxide (SiO2)
AI-generated identification · may be incorrectHardness of 7 on the Mohs scale, vitreous luster, conchoidal fracture, and trigonal crystal system. Color ranges from milky white to translucent with brownish dendritic inclusions.
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Physical properties
Hardness of 7 on the Mohs scale, vitreous luster, conchoidal fracture, and trigonal crystal system. Color ranges from milky white to translucent with brownish dendritic inclusions.
Formation & geological history
Formed via hydrothermal processes where silica-rich fluids precipitate in fractures within Earth's crust. Geological age varies widely depending on the specific deposit.
Uses & applications
Used widely in lapidary arts, jewelry, decorative tumbled stones, and electronic oscillator components.
Geological facts
Quartz is the second most abundant mineral in Earth's continental crust and exhibits piezoelectric properties. Dendritic patterns are typically manganese or iron oxides.
Field identification & locations
Identified by its high hardness (scratches glass), lack of cleavage, and waxy-to-vitreous luster on tumbled surfaces. Common worldwide in riverbeds and pegmatites.
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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