mineral
Milky quartz
Quartz (SiO₂), commonly massive milky quartz
AI-generated identification · may be incorrectWhite to cream, cloudy and nonmetallic with a vitreous-to-dull luster; Mohs hardness 7, no cleavage, and irregular to conchoidal fracture. The image shows a rough, massive specimen without visible crystal faces.
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Physical properties
White to cream, cloudy and nonmetallic with a vitreous-to-dull luster; Mohs hardness 7, no cleavage, and irregular to conchoidal fracture. The image shows a rough, massive specimen without visible crystal faces.
Formation & geological history
Forms when silica-rich fluids crystallize in veins and cavities, or as quartz-rich material in igneous and metamorphic rocks. Quartz is found in rocks of nearly all geological ages.
Uses & applications
Used as a silica source in glass and ceramics; attractive pieces may be polished or collected, though this specimen appears mainly ornamental or field-grade.
Geological facts
Cloudiness commonly results from microscopic fluid inclusions or fractures that scatter light.
Field identification & locations
Common worldwide, especially in quartz veins and pegmatites. Its hardness (it can scratch glass) and lack of cleavage help distinguish it from softer white minerals such as calcite.
More like this
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