mineral
Quartz crystal (likely milky or clear quartz)
Quartz, silicon dioxide (SiO₂)
AI-generated identification · may be incorrectHardness 7 Mohs; pale translucent white with a vitreous luster and hexagonal crystal structure. The pointed, elongated shape and longitudinal striations are consistent with a quartz crystal; cleavage is absent, with conchoidal fracture.
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Physical properties
Hardness 7 Mohs; pale translucent white with a vitreous luster and hexagonal crystal structure. The pointed, elongated shape and longitudinal striations are consistent with a quartz crystal; cleavage is absent, with conchoidal fracture.
Formation & geological history
Formed as silica-rich fluids crystallized in a cavity or vein; quartz occurs in rocks of many geological ages and settings.
Uses & applications
Commonly collected; quartz is also used in glass, electronics, abrasives, and ornamental objects.
Geological facts
Quartz is one of Earth’s most abundant minerals and occurs in many colors and crystal habits.
Field identification & locations
Look for hardness, glassy luster, and a six-sided prism ending in a pointed termination. Common worldwide in veins and geodes; the image does not show enough context for a precise locality or species confirmation.
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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
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