mineral
Milky Quartz
Silicon Dioxide (SiO2)
AI-generated identification · may be incorrectHardness: 7 (Mohs scale), Color: White to translucent, Luster: Vitreous to greasy, Crystal Structure: Trigonal, Cleavage: None (Conchoidal fracture), Specific Gravity: 2.65
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Physical properties
Hardness: 7 (Mohs scale), Color: White to translucent, Luster: Vitreous to greasy, Crystal Structure: Trigonal, Cleavage: None (Conchoidal fracture), Specific Gravity: 2.65
Formation & geological history
Formed in hydrothermal veins and igneous intrusions. The milky appearance is caused by microscopic fluid inclusions of gas or liquid trapped during crystal growth.
Uses & applications
Used in glass making, abrasive blasting, electronics (piezoelectric properties), and as a landscape stone or collector's mineral.
Geological facts
Milky quartz is the most common variety of crystalline quartz. Its white color is due to millions of tiny bubbles trapped inside the mineral lattice.
Field identification & locations
Commonly found in gravel pits, riverbeds, and as veins in metamorphic rocks. Identified by its ability to scratch glass and its lack of cleavage.
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