
mineral
Milky Quartz
Silicon Dioxide (SiO2)
AI-generated identification · may be incorrectHardness of 7 on the Mohs scale, white to milky color with a vitreous to greasy luster, hexagonal crystal system, and conchoidal fracture with no true cleavage.
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Physical properties
Hardness of 7 on the Mohs scale, white to milky color with a vitreous to greasy luster, hexagonal crystal system, and conchoidal fracture with no true cleavage.
Formation & geological history
Forms hydrothermally from silica-rich aqueous solutions in veins, pegmatites, and metamorphic rocks across various geological eras.
Uses & applications
Used in electronics, oscillator components, glassmaking, and as a decorative specimen for mineral collectors.
Geological facts
Milky quartz is the most common variety of the quartz family and owes its white appearance to microscopic fluid inclusions trapped during growth.
Field identification & locations
Identified by its distinctive white color, high hardness that scratches glass, and lack of cleavage; found globally.