mineral
Milky quartz
Quartz (silicon dioxide, SiO₂)
AI-generated identification · may be incorrectWhite to translucent, with a vitreous-to-waxy luster and irregular fracture; Mohs hardness 7, trigonal crystal system, and no cleavage. The rounded, lumpy shape may be naturally weathered or worked, but the photo alone cannot distinguish this.
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Physical properties
White to translucent, with a vitreous-to-waxy luster and irregular fracture; Mohs hardness 7, trigonal crystal system, and no cleavage. The rounded, lumpy shape may be naturally weathered or worked, but the photo alone cannot distinguish this.
Formation & geological history
Forms when silica-rich fluids crystallize in veins and cavities, or as quartz grains in many rock types; quartz deposits occur across a wide range of geological ages.
Uses & applications
Common as a collector specimen and used in some decorative objects; quartz is also important in glassmaking and electronics, though this piece appears suited mainly for display.
Geological facts
Milky appearance comes from microscopic fluid or gas inclusions that scatter light.
Field identification & locations
Identify by its hardness, lack of cleavage, and glassy or waxy fracture surfaces; widespread in quartz veins and pegmatites worldwide. The image does not establish a specific locality or whether it is polished.
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