Sedimentary
Sandstone or Limestone
Sedimentary Rock
Earthy color (tan, brown, yellowish), grainy texture, variable hardness depending on cementation.
Identified More sedimentary →
Identify your own rocks.
Get a report just like this from any photo, free.
Physical properties
Earthy color (tan, brown, yellowish), grainy texture, variable hardness depending on cementation.
Formation & geological history
Formed by the accumulation and cementation of sand grains or calcium carbonate over geological time.
Uses & applications
Used in construction, landscaping, and architecture.
Geological facts
Common sedimentary rocks have been used as building materials for thousands of years.
Field identification & locations
Identified by its granular texture or reaction to dilute hydrochloric acid (if limestone). Often found in ancient seabeds, riverbeds, and desert environments.
More like this
Other sedimentary specimens
Sandstone or Siltstone
Arenite (if sandstone)
Sedimentary
Sandstone
Arenite (primarily SiO2)
sedimentary
Chert Breccia
Brecciated Chert (Microcrystalline Silica)
sedimentary
Sandstone Grain
Clastic Sedimentary Rock Grain (SiO2 dominated)
sedimentary
Shale or Slaty Mudstone
Argillaceous sedimentary rock
sedimentary
Sandstone
Arenite
sedimentary