mineral
Milky quartz (likely quartz fragment)
Quartz, silicon dioxide (SiO₂)
AI-generated identification · may be incorrectTypically white to translucent with a vitreous luster; Mohs hardness 7, no cleavage, conchoidal fracture, and hexagonal crystal structure. The image is blurred, but the pale, cloudy appearance is consistent with milky quartz.
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Physical properties
Typically white to translucent with a vitreous luster; Mohs hardness 7, no cleavage, conchoidal fracture, and hexagonal crystal structure. The image is blurred, but the pale, cloudy appearance is consistent with milky quartz.
Formation & geological history
Forms in hydrothermal veins, pegmatites, and igneous or metamorphic rocks when silica-rich fluids crystallize; specimens may range from Precambrian to recent geological settings.
Uses & applications
Common quartz is used in glass, ceramics, abrasives, electronics, and engineered stone; attractive pieces are used as inexpensive decorative or lapidary material.
Geological facts
Milky color results from microscopic fluid inclusions, fractures, or defects that scatter light. Quartz is one of Earth’s most abundant and chemically durable minerals.
Field identification & locations
Identify it by its glassy luster, hardness sufficient to scratch ordinary glass, lack of cleavage, and irregular conchoidal fracture; common worldwide, especially in quartz veins and granitic terrains.
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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