River Cobble (likely Sandstone or Siltstone type)
Sandstone or Siltstone (common rock types that form river cobbles)
Sedimentary Rock (specifically a clastic sedimentary rock formed into a cobble)
Category
Sedimentary Rock (Specifically A Clastic Sedimentary Rock Formed Into A Cobble)
Browse sedimentary rock (specifically a clastic sedimentary rock formed into a cobble) specimens identified by the Rock Identifier community.
Learn about Sedimentary Rock (Specifically A Clastic Sedimentary Rock Formed Into A Cobble) in the encyclopedia
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Conglomerate
Conglomerate (clastic sedimentary rock)
sedimentary
Sandstone (River Cobble)
Arenite
sedimentary
Sandstone Cobble
Clastic Sedimentary (Sandstone)
sedimentary
Conglomerate (Puddingstone)
Conglomerate (specifically, clastic sedimentary rock)
Sedimentary
Conglomerate
Polymictic Conglomerate
sedimentary
River Cobble (likely Siltstone or Sandstone)
Clastic Sedimentary Rock
sedimentary
Sandstone (Weathered Cobble)
Clastic sedimentary rock (primarily SiO2)
sedimentary
Sandstone
Arenite (SiO2 principal)
sedimentary
Sandstone with Iron Banding
Arenite with Hematite or Limonite staining (SiO2 with Fe2O3)
sedimentary
Sandstone (Quartzite-rich)
Clastic sedimentary rock (SiO2 primary)
sedimentary
Conglomerate
Clastic Sedimentary Rock (Puddingstone)
sedimentary
Sandstone
Sandstone (Quartz-rich sedimentary rock)
sedimentary
Sandstone (Ferruginous)
Clastic sedimentary rock (SiO2 with Fe2O3)
sedimentary
Conglomerate
Conglomerate (Sedimentary Clastic Rock)
sedimentary
Conglomerate
Conglomerate (clastic sedimentary rock)
sedimentary
Sandstone Cobble with Iron Staining
Arenite with Limonite/Hematite staining
sedimentary
Sandstone Concretion (Omar or Nut Rock)
Sedimentary Concretion (specifically an 'Omarolluk' or Omar)
sedimentary
Painted Garden Rock
Coated Siltstone or Mudstone
sedimentary
Sandstone Cobble
Arenite (Secondary classification based on grain size)
sedimentary
Conglomerate
Conglomerate (clastic sedimentary rock)
sedimentary
Conglomerate
Conglomerate (Sedimentary Rock)
sedimentary
Sandstone (specifically Banded Sandstone)
Clastic sedimentary rock (primarily SiO2)
sedimentary
Conglomerate
Conglomerate (Clastic sedimentary rock)
sedimentary
Conglomerate
Conglomerate (clastic sedimentary rock)
sedimentary
Conglomerate
Clastic Sedimentary Rock
sedimentary
Pebble or Cobble (likely composed of sandstone or conglomerate)
Clastic Sedimentary Rock (specific name like sandstone, conglomerate, or breccia would require microscopic analysis of clast size and angularity)
Sedimentary Rock (possibly a conglomerate or coarse-grained sandstone)
Conglomerate
Conglomerate (clastic sedimentary rock)
sedimentary
Sandstone (Weathered Cobble)
Clastic Sedimentary Rock (primarily SiO2)
sedimentary
Conglomerate
Clastic Sedimentary Rock (Conglomerate)
sedimentary
Conglomerate
Conglomerate (clastic sedimentary rock)
sedimentary
Conglomerate
Conglomerate (Clastic Sedimentary Rock)
Sedimentary
Conglomerate
Conglomerate (clastic sedimentary rock)
sedimentary
Sandstone (Graywacke)
Clastic Sedimentary Rock (Lithic Sandstone)
sedimentary
Sandstone with Manganese Oxide Patina
Clastic Sedimentary Rock (primarily SiO2)
sedimentary
Conglomerate
Conglomerate (Clastic Sedimentary Rock)
sedimentary
Sandstone (Quartzite-rich Cobble)
Clastic sedimentary rock (primarily SiO2)
sedimentary
River Rock (Basalt or Sandstone)
Clastic Sedimentary Rock or Extrusive Mafic Igneous Rock
igneous or sedimentary
Sandstone (Quartzite-rich Cobble)
Clastic sedimentary rock (primarily SiO2)
sedimentary
Limestone Cobble
Sedimentary Calcium Carbonate (CaCO3)
sedimentary
Sandstone
Clastic sedimentary rock (primarily SiO2)
sedimentary
Sandstone (Weathered Cobble)
Clastic Sedimentary Rock (primarily SiO2)
sedimentary