Rock Identifier

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

Asphalt Rock

Rock Gypsum

Calc-Silicate Rock

Calc-Silicate Rock

Talc-carbonate Rock

Talc-carbonate Rock

Conglomerate

Breccia

Ironstone

Siltstone

Claystone

Limestone

Mudstone

Phosphorite

Weathered sandstone cobble (Clastic sandstone, likely quartz-rich arenite or arkose) — sedimentary

Weathered sandstone cobble

Clastic sandstone, likely quartz-rich arenite or arkose

Weathered gray sandstone or siltstone cobble (Clastic sedimentary rock, likely quartz-rich sandstone/siltstone (diagnosis uncertain from image)) — sedimentary

Weathered gray sandstone or siltstone cobble

Clastic sedimentary rock, likely quartz-rich sandstone/siltstone (diagnosis uncertain from image)

Weathered sandstone or iron-rich sedimentary rock (Clastic sandstone, likely ferruginous sandstone (quartz-rich; exact identification uncertain from image)) — sedimentary

Weathered sandstone or iron-rich sedimentary rock

Clastic sandstone, likely ferruginous sandstone (quartz-rich; exact identification uncertain from image)

Weathered red sandstone cobble (Quartz-rich sandstone, likely ferruginous arkose or litharenite) — sedimentary

Weathered red sandstone cobble

Quartz-rich sandstone, likely ferruginous arkose or litharenite

Sandstone (Ferruginous) (Arenite (primarily SiO2 with Fe2O3 cement)) — sedimentary

Sandstone (Ferruginous)

Arenite (primarily SiO2 with Fe2O3 cement)

Wishing Stone (Basalt/Siltstone with Quartz/Calcite vein) (Carbonaceous Siltstone with Quartz (SiO2) or Calcite (CaCO3) vein) — sedimentary

Wishing Stone (Basalt/Siltstone with Quartz/Calcite vein)

Carbonaceous Siltstone with Quartz (SiO2) or Calcite (CaCO3) vein

Shale (sub-type: Carbonaceous Shale) (Lutaceous Sedimentary Rock) — sedimentary

Shale (sub-type: Carbonaceous Shale)

Lutaceous Sedimentary Rock

River Cobble (Clastic Sedimentary (Quartz-rich Cobble)) — sedimentary

River Cobble

Clastic Sedimentary (Quartz-rich Cobble)

Sandstone (Sandstone (clastic sedimentary rock)) — Rock

Sandstone

Sandstone (clastic sedimentary rock)

Pink Granite (Phaneritic Felsic Igneous Rock) — igneous

Pink Granite

Phaneritic Felsic Igneous Rock

Dalmatian Stone (Peralkaline rhyolite) — igneous

Dalmatian Stone

Peralkaline rhyolite

Dalmation Jasper (or Dalmation Stone) (Dalmation Stone (composed of Perthite, Quartz, and Arfvedsonite)) — igneous

Dalmation Jasper (or Dalmation Stone)

Dalmation Stone (composed of Perthite, Quartz, and Arfvedsonite)

Sandstone (Sedimentary Rock (Quartz Sandstone)) — sedimentary

Sandstone

Sedimentary Rock (Quartz Sandstone)

River Pebble (Siltstone / Fine Sandstone) (Sedimentary Rock (siliciclastic clastic rock)) — sedimentary

River Pebble (Siltstone / Fine Sandstone)

Sedimentary Rock (siliciclastic clastic rock)

Limestone Cobble (Sedimentary Limestone (Calcium Carbonate, CaCO3)) — sedimentary

Limestone Cobble

Sedimentary Limestone (Calcium Carbonate, CaCO3)

Quartzite Cobble (Metamorphosed Quartz Sandstone (SiO2)) — metamorphic

Quartzite Cobble

Metamorphosed Quartz Sandstone (SiO2)

Sandstone Grain (Clastic Sedimentary Rock Grain (SiO2 dominated)) — sedimentary

Sandstone Grain

Clastic Sedimentary Rock Grain (SiO2 dominated)

Pink Granite (Granite (Felsic intrusive igneous rock)) — igneous

Pink Granite

Granite (Felsic intrusive igneous rock)

River Cobble (Quartzite / Sandstone) (Quartzite / Siliciclastic Sedimentary Rock) — sedimentary

River Cobble (Quartzite / Sandstone)

Quartzite / Siliciclastic Sedimentary Rock

Sandstone Cobble with Liesegang Rings (Arenite with iron oxide precipitation (SiO2 matrix with Fe2O3 banding)) — sedimentary

Sandstone Cobble with Liesegang Rings

Arenite with iron oxide precipitation (SiO2 matrix with Fe2O3 banding)

Sandstone (River Cobble) (Sandstone (principally composed of Quartz, SiO2)) — sedimentary

Sandstone (River Cobble)

Sandstone (principally composed of Quartz, SiO2)

Petrified Wood (Silicified Wood (SiO2)) — metamorphic

Petrified Wood

Silicified Wood (SiO2)

Red Sandstone (Clastic Sandstone (typically Quartz-rich with Iron Oxide)) — sedimentary

Red Sandstone

Clastic Sandstone (typically Quartz-rich with Iron Oxide)

Red Sandstone (Arenite (primarily Quartz with Hematite cement)) — sedimentary

Red Sandstone

Arenite (primarily Quartz with Hematite cement)

Sandstone (specifically Cross-bedded Sandstone) (Arenite (composed primarily of SiO2)) — sedimentary

Sandstone (specifically Cross-bedded Sandstone)

Arenite (composed primarily of SiO2)

Sandstone (Sedimentary Clastic Rock (Quartz Arenite)) — sedimentary

Sandstone

Sedimentary Clastic Rock (Quartz Arenite)

Conglomerate (Conglomerate (Clastic Sedimentary Rock)) — sedimentary

Conglomerate

Conglomerate (Clastic Sedimentary Rock)

Sandstone (Clastic sedimentary rock (primarily SiO2)) — sedimentary

Sandstone

Clastic sedimentary rock (primarily SiO2)

Shale with Quartz Veins (Fissile Sedimentary Rock (SiO2)) — sedimentary

Shale with Quartz Veins

Fissile Sedimentary Rock (SiO2)

Shale (or Mudstone) (Laminose Mudrock (composition: clay minerals, quartz, and mica flakes)) — sedimentary

Shale (or Mudstone)

Laminose Mudrock (composition: clay minerals, quartz, and mica flakes)

Shale (Lutaceous Rock (Hydrous Aluminum Silicates)) — sedimentary

Shale

Lutaceous Rock (Hydrous Aluminum Silicates)

Shale (Shale (Lutite)) — sedimentary

Shale

Shale (Lutite)

Quartz (likely Herkimer Diamond style) (Silicon Dioxide (SiO2)) — mineral

Quartz (likely Herkimer Diamond style)

Silicon Dioxide (SiO2)

Sandstone (Quartz Sandstone (predominantly)) — Sedimentary

Sandstone

Quartz Sandstone (predominantly)

Sandstone (Pebble) (Arenite) — sedimentary

Sandstone (Pebble)

Arenite

Breccia (Breccia (Clastic Sedimentary Rock)) — sedimentary

Breccia

Breccia (Clastic Sedimentary Rock)

Sandstone (Arenite (SiO2 dominant)) — sedimentary

Sandstone

Arenite (SiO2 dominant)

Sandstone (Wonderstone) (Clastic Sedimentary Rock (primarily SiO2)) — sedimentary

Sandstone (Wonderstone)

Clastic Sedimentary Rock (primarily SiO2)

Sandstone (with man-made markings) (Arenite (composed primarily of Quartz, SiO2)) — sedimentary

Sandstone (with man-made markings)

Arenite (composed primarily of Quartz, SiO2)

Conglomerate (Conglomerate (clastic sedimentary rock)) — sedimentary

Conglomerate

Conglomerate (clastic sedimentary rock)

Conglomerate (Quartz Pebble Conglomerate) (Quartz Pebble Conglomerate) — sedimentary

Conglomerate (Quartz Pebble Conglomerate)

Quartz Pebble Conglomerate

Sedimentary Breccia (Breccia (Clastic Sedimentary Rock)) — sedimentary

Sedimentary Breccia

Breccia (Clastic Sedimentary Rock)