sedimentary
Small rounded tan pebble, likely quartz-rich river stone
Indeterminate; possibly quartz or quartzite (predominantly SiO₂)
AI-generated identification · may be incorrectCream to tan, rounded and smooth, with a dull to slightly waxy surface and no visible crystals. If quartz-rich, hardness is about 7 Mohs; the image does not reveal cleavage or specific gravity reliably.
Identified More sedimentary →
Explore Small rounded tan pebble, likely quartz-rich river stone in the encyclopedia →Identify your own rocks.
Get a report just like this from any photo, free.
Physical properties
Cream to tan, rounded and smooth, with a dull to slightly waxy surface and no visible crystals. If quartz-rich, hardness is about 7 Mohs; the image does not reveal cleavage or specific gravity reliably.
Formation & geological history
Likely worn smooth by water or sediment abrasion; its exact formation history and age cannot be determined from the photograph.
Uses & applications
May be kept as a decorative or educational specimen; no specific industrial or jewelry use can be established from its appearance alone.
Geological facts
The pebble is too small and visually featureless for a confident mineral identification; several common rocks and minerals can look similar when rounded.
Field identification & locations
A quartz-rich pebble typically resists scratching by a steel knife and lacks obvious cleavage, but testing and a closer view of a fresh surface would help distinguish quartz, quartzite, and other materials. Similar pebbles occur in river and beach gravels worldwide.
More like this
Other sedimentary specimens
Fossiliferous Sedimentary Rock
Sedimentary limestone with invertebrate fossil imprint
fossil
Sandstone or Siltstone
Arenite (if sandstone)
Sedimentary
Sandstone
Arenite
sedimentary
Quartz pebble
Silicon dioxide (SiO2)
sedimentary
Generic Pebble / Rock Fragment
Lithic fragment / Weathered rock
sedimentary
Shale
Shale (clastic sedimentary rock)
sedimentary