
mineral
Milky Quartz
Silicon Dioxide (SiO2)
AI-generated identification · may be incorrectHardness of 7 on the Mohs scale, white to milky color caused by microscopic fluid inclusions, vitreous to greasy luster, and hexagonal crystal system with no cleavage.
Identified More mineral →
Explore Milky Quartz in the encyclopedia →Identify your own rocks.
Get a report just like this from any photo, free.
Physical properties
Hardness of 7 on the Mohs scale, white to milky color caused by microscopic fluid inclusions, vitreous to greasy luster, and hexagonal crystal system with no cleavage.
Formation & geological history
Formed through the cooling and crystallization of silica-rich hydrothermal solutions within cracks and veins of Earth's crust.
Uses & applications
Used in glassmaking, abrasives, electronics, and as a decorative mineral specimen for collectors.
Geological facts
Milky quartz is the most common variety of quartz found globally, often occurring in massive vein formations rather than distinct single crystals.
Field identification & locations
Easily identified by its characteristic white turbidity and high hardness that scratches glass. Found worldwide, particularly in pegmatites and hydrothermal veins.