mineral
Milky Quartz Pebble
Silicon Dioxide (SiO2)
Hardness: 7 (Mohs scale), Color: Opaque white to cream, Luster: Vitreous to waxy, Crystal Structure: Trigonal, Cleavage: None/Conchoidal fracture.
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Physical properties
Hardness: 7 (Mohs scale), Color: Opaque white to cream, Luster: Vitreous to waxy, Crystal Structure: Trigonal, Cleavage: None/Conchoidal fracture.
Formation & geological history
Formed from hydrothermal veins or cooled igneous magma. This specific specimen has been Rounded and polished by water erosion in a river or beach environment.
Uses & applications
Used in landscaping, aquariums, glass manufacturing, and as decorative pocket stones or tumbled gems.
Geological facts
The white 'milky' appearance is caused by microscopic fluid inclusions of gas or liquid trapped during the crystal's growth.
Field identification & locations
Identify by its ability to scratch glass and its smooth, rounded texture. It is one of the most common minerals found in riverbeds and on beaches worldwide.
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