mineral

Rounded quartz pebble (tentative)

Quartz, silicon dioxide (SiO₂)

AI-generated identification · may be incorrect

Small, smooth, rounded pale-white object with a dull to weakly vitreous surface; likely hardness about 7 Mohs, no visible cleavage, and specific gravity near 2.65. The image is low-detail, so mineral identification is not certain.

Identified September 19, 2026More mineral →

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Physical properties

Formation & geological history

Likely a naturally water-worn quartz pebble or quartz-rich rock fragment; quartz formed in igneous, metamorphic, or sedimentary settings and is geologically very old. The reported southeastern Victoria location plausibly contains transported quartz pebbles.

Uses & applications

Common quartz is used in glass, ceramics, engineered stone, abrasives, electronics, and collecting; this specimen has little commercial value unless unusually clear or attractive.

Geological facts

Quartz commonly fractures conchoidally and scratches ordinary glass, but a scratch test should be done cautiously. It may also be a pale chalcedony, feldspar, or an ordinary light-colored pebble rather than quartz.

Field identification & locations

Check whether it scratches glass, inspect for translucent edges and conchoidal fracture, and test for acid reaction (none expected). Common in creek gravels and soils around southeastern Australia.