sedimentary
Sandstone / Chert Pebble
Silicon Dioxide / Sedimentary Rock (SiO2)
Hardness: 6-7 on Mohs scale. Color: Tan, beige, light brownish-grey. Luster: Dull, earthy to sub-vitreous. Fracture: Conchoidal to uneven. Grain size: Fine to medium.
- Hardness
- 6-7 on Mohs scale
- Color
- Tan, beige, light brownish-grey
- Luster
- Dull, earthy to sub-vitreous
Identified More sedimentary →
Explore Sandstone / Chert Pebble in the encyclopedia →Identify your own rocks.
Get a report just like this from any photo, free.
Physical properties
Hardness: 6-7 on Mohs scale. Color: Tan, beige, light brownish-grey. Luster: Dull, earthy to sub-vitreous. Fracture: Conchoidal to uneven. Grain size: Fine to medium.
Formation & geological history
Formed through the accumulation, compaction, and cementation of mineral particles or rock fragments, often in riverbeds, lakes, or marine environments, followed by natural erosion into pebble form.
Uses & applications
Common landscaping rock, construction aggregate, or general gravel. Minor interest to rockhounding beginners.
Geological facts
Small weathered pebbles like this are amongst the most common rocks found on Earth's surface, shaped over thousands of years by water and wind erosion.
Field identification & locations
Identified by its fine grain, dull earthy tan color, and rounded/sub-angular weathered edges. Commonly found along riverbeds, gravel paths, beaches, and soil deposits.
More like this
Other sedimentary specimens
Sandstone or Siltstone
Arenite (if sandstone)
Sedimentary
Sedimentary Sandstone
Arenite (Sedimentary Rock)
sedimentary
Fossiliferous Concretion
Septarian Concretion containing Brachiopods/Crinoids
fossil
Shale
Shale (clastic sedimentary rock)
sedimentary
Brown Sandstone (River Rock)
Arenite
sedimentary
Shale
Argillaceous sedimentary rock
sedimentary