mineral
White tumbled stone, possibly milky quartz
Unidentified; milky quartz (SiO₂) is a plausible match
AI-generated identification · may be incorrectSmall, smooth, opaque white pebble with a subdued vitreous-to-waxy luster. If quartz, hardness is 7 Mohs, with no cleavage and a hexagonal crystal structure; the image is insufficient to confirm identification.
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Physical properties
Small, smooth, opaque white pebble with a subdued vitreous-to-waxy luster. If quartz, hardness is 7 Mohs, with no cleavage and a hexagonal crystal structure; the image is insufficient to confirm identification.
Formation & geological history
Could be a naturally rounded pebble or a mechanically tumbled specimen. If quartz, it formed from silica-rich fluids or magma; its age and geological setting cannot be determined from the photograph.
Uses & applications
Decorative and collectible; quartz is also used in glassmaking, electronics, and jewelry.
Geological facts
Milky quartz gets its cloudy appearance from microscopic inclusions or fluid-filled cavities.
Field identification & locations
A hardness test and inspection for conchoidal fracture could help distinguish quartz from softer white minerals such as calcite. White pebbles occur worldwide in quartz-rich gravels and veins.
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Epidote
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