Rock Identifier
Likely milky quartz pebble (Quartz (silicon dioxide, SiO₂)) — mineral
mineral

Likely milky quartz pebble

Quartz (silicon dioxide, SiO₂)

AI-generated identification · may be incorrect

Small, opaque white to cream, dull-to-vitreous pebble with no obvious cleavage; quartz has Mohs hardness 7, hexagonal crystal structure, and specific gravity about 2.65. The image alone cannot confirm its composition.

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Physical properties

Small, opaque white to cream, dull-to-vitreous pebble with no obvious cleavage; quartz has Mohs hardness 7, hexagonal crystal structure, and specific gravity about 2.65. The image alone cannot confirm its composition.

Formation & geological history

If quartz, it formed when silica crystallized in igneous or hydrothermal settings, then was weathered and rounded into a pebble; quartz occurs in rocks of many ages.

Uses & applications

Quartz is used in glassmaking, electronics, abrasives, construction aggregate, and jewelry; this small, unverified pebble has little apparent commercial value.

Geological facts

Milky color results from microscopic fluid or gas inclusions that scatter light.

Field identification & locations

Its pale color and rounded shape are consistent with milky quartz, but a hardness or streak test would help distinguish it from other light-colored minerals. Quartz is widespread worldwide.