mineral
Likely milky quartz
Quartz (SiO₂)
AI-generated identification · may be incorrectCreamy white to pale tan, translucent in thinner areas, with a vitreous to waxy luster and irregular fracture; quartz has Mohs hardness 7 and a trigonal crystal structure, with no cleavage. The small, worn piece’s appearance is not diagnostic enough to rule out other pale minerals.
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Physical properties
Creamy white to pale tan, translucent in thinner areas, with a vitreous to waxy luster and irregular fracture; quartz has Mohs hardness 7 and a trigonal crystal structure, with no cleavage. The small, worn piece’s appearance is not diagnostic enough to rule out other pale minerals.
Formation & geological history
Quartz forms in igneous and metamorphic rocks and in hydrothermal veins; it occurs from many geological ages. This fragment’s specific origin and age cannot be determined from the image.
Uses & applications
Commonly used in glassmaking, electronics, abrasives, and ornamental objects; attractive pieces may be polished or collected.
Geological facts
Quartz is one of Earth’s most abundant minerals and is scratch-resistant enough to scratch ordinary glass.
Field identification & locations
Look for glass-like luster, hardness near 7, and absence of cleavage; a streak or scratch test can help distinguish it from softer lookalikes. Found worldwide, especially in veins and granitic terrains.
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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