mineral
Milky Quartz
Silicon Dioxide (SiO2)
AI-generated identification · may be incorrectHardness of 7 on the Mohs scale, white to milky color with a greasy to vitreous luster, conchoidal fracture, and no cleavage.
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Physical properties
Hardness of 7 on the Mohs scale, white to milky color with a greasy to vitreous luster, conchoidal fracture, and no cleavage.
Formation & geological history
Forms in hydrothermal veins, pegmatites, and igneous rocks through the cooling and precipitation of silica-rich solutions over millions of years.
Uses & applications
Used in glassmaking, abrasives, electronics, and as an ornamental or lapidary stone for carving and jewelry.
Geological facts
Milky quartz is the most common variety of quartz found on Earth, often appearing white due to microscopic fluid inclusions trapped during formation.
Field identification & locations
Identified easily by its lack of cleavage, high hardness capable of scratching glass, and characteristic cloudy white appearance. Found worldwide.
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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
Pegmatite with Tourmaline and Quartz
Igneous Pegmatite
igneous
Epidote
Epidote | Ca2(Al2,Fe3+)(SiO4)(Si2O7)O(OH)
metamorphic
Granite
Granite (Phaneritic intrusive igneous rock)
igneous