mineral
Milky quartz pebble
Quartz (silicon dioxide, SiO₂)
AI-generated identification · may be incorrectThe smooth, rounded off-white pebble appears slightly translucent with a glassy-to-waxy surface and small natural pits. Quartz has Mohs hardness 7, a trigonal crystal structure, no cleavage, and specific gravity about 2.65.
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Physical properties
The smooth, rounded off-white pebble appears slightly translucent with a glassy-to-waxy surface and small natural pits. Quartz has Mohs hardness 7, a trigonal crystal structure, no cleavage, and specific gravity about 2.65.
Formation & geological history
Likely a quartz fragment worn smooth by water or abrasion; quartz forms in many igneous, metamorphic, and hydrothermal settings. Its age cannot be determined from the image.
Uses & applications
Commonly collected or used in landscaping, crafts, and decorative stone; this small, ordinary pebble has little gem or industrial value.
Geological facts
Milky appearance results from microscopic fluid or gas inclusions and internal fractures that scatter light.
Field identification & locations
Quartz pebbles are widespread in stream and beach gravels. A glass scratch test can help distinguish quartz (which scratches glass), though the image alone cannot confirm the identification.
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