mineral
Clear quartz crystal (tentative)
Quartz, silicon dioxide (SiO₂)
AI-generated identification · may be incorrectAppears colorless to translucent with a glassy luster and an angular, pointed crystal-like shape. Quartz has Mohs hardness 7, a hexagonal crystal structure, and no cleavage; the photo is too blurry for confident identification.
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Physical properties
Appears colorless to translucent with a glassy luster and an angular, pointed crystal-like shape. Quartz has Mohs hardness 7, a hexagonal crystal structure, and no cleavage; the photo is too blurry for confident identification.
Formation & geological history
Quartz commonly crystallizes from silica-rich fluids in veins and cavities, or forms in igneous and metamorphic rocks. It occurs in rocks of many geological ages.
Uses & applications
Quartz is used in glassmaking, electronics, and jewelry; clear crystal points are also collected and sometimes used decoratively.
Geological facts
Quartz is one of Earth’s most abundant minerals and can be confused with glass or other clear minerals.
Field identification & locations
Look for hardness sufficient to scratch glass, lack of cleavage, and a glassy appearance; common worldwide in veins, pegmatites, and geodes. A close, sharp photo or hardness test would help confirm it.
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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