Rock Identifier

Category

Sedimentary Rock

Browse sedimentary rock specimens identified by the Rock Identifier community.

Learn about Sedimentary Rock in the encyclopedia

Asphalt Rock

Rock Gypsum

Coral Rock

Rock Salt

Conglomerate

Coal

Limestone

Calc-Silicate Rock

Calc-Silicate Rock

Talc-carbonate Rock

Talc-carbonate Rock

Claystone

Mudstone

Ironstone

Petrified Wood (Silicified Wood (SiO2)) — mineral

Petrified Wood

Silicified Wood (SiO2)

Sandstone (lithic wacke/conglomerate mix) (Clastic Sedimentary Rock (SiO2 with lithic fragments)) — sedimentary

Sandstone (lithic wacke/conglomerate mix)

Clastic Sedimentary Rock (SiO2 with lithic fragments)

Sandstone with Brachiopod Mold Fossil (Sedimentary rock (Sandstone) with indeterminate Brachiopod mold) — fossil

Sandstone with Brachiopod Mold Fossil

Sedimentary rock (Sandstone) with indeterminate Brachiopod mold

Sandstone (Sandstone (Sedimentary rock composed of silicate grains)) — sedimentary

Sandstone

Sandstone (Sedimentary rock composed of silicate grains)

Likely weathered sandstone or iron-rich sedimentary rock (Quartz-rich sandstone, possibly ferruginous sandstone) — sedimentary

Likely weathered sandstone or iron-rich sedimentary rock

Quartz-rich sandstone, possibly ferruginous sandstone

Sandstone (Ferruginous) (Clastic Sedimentary Rock (SiO2 with FeO/Fe2O3)) — sedimentary

Sandstone (Ferruginous)

Clastic Sedimentary Rock (SiO2 with FeO/Fe2O3)

Sandstone (Sedimentary Rock (Quartz arenite / Lithic sandstone)) — sedimentary

Sandstone

Sedimentary Rock (Quartz arenite / Lithic sandstone)

Weathered sandstone or iron-rich sedimentary rock fragments (Quartz-rich sandstone, locally ferruginous; exact identification requires testing) — sedimentary

Weathered sandstone or iron-rich sedimentary rock fragments

Quartz-rich sandstone, locally ferruginous; exact identification requires testing

Weathered iron-rich sandstone or ferruginous sedimentary rock (Quartz-rich sandstone, locally cemented by iron oxides (primarily hematite/goethite)) — sedimentary

Weathered iron-rich sandstone or ferruginous sedimentary rock

Quartz-rich sandstone, locally cemented by iron oxides (primarily hematite/goethite)

Siltstone Pebble (Siltstone (fine-grained siliciclastic sedimentary rock)) — sedimentary

Siltstone Pebble

Siltstone (fine-grained siliciclastic sedimentary rock)

Red Sandstone Pebble (Sedimentary quartz sandstone) — sedimentary

Red Sandstone Pebble

Sedimentary quartz sandstone

Sandstone (likely Arkosic) (Clastic Sedimentary Rock (primarily SiO2 with Feldspar)) — sedimentary

Sandstone (likely Arkosic)

Clastic Sedimentary Rock (primarily SiO2 with Feldspar)

Shale creek bed (Shale (fine-grained clastic sedimentary rock)) — Sedimentary

Shale creek bed

Shale (fine-grained clastic sedimentary rock)

Bandit Heart Pebble (Quartz-Veined Sedimentary Rock) (Quartz-veined siltstone or sandstone) — sedimentary

Bandit Heart Pebble (Quartz-Veined Sedimentary Rock)

Quartz-veined siltstone or sandstone

Siltstone with Fossil Cast (Sedimentary Rock (Siltstone / Fine-grained Sandstone)) — sedimentary

Siltstone with Fossil Cast

Sedimentary Rock (Siltstone / Fine-grained Sandstone)

Sandstone (Sandstone (SiO2-rich detrital sedimentary rock)) — sedimentary

Sandstone

Sandstone (SiO2-rich detrital sedimentary rock)

Sandstone (Lithic Sandstone / Greywacke) (Sandstone (SiO2 rich clastic sedimentary rock)) — sedimentary

Sandstone (Lithic Sandstone / Greywacke)

Sandstone (SiO2 rich clastic sedimentary rock)

Sandstone (Sedimentary Rock (Quartz arenite / Lithic sandstone)) — sedimentary

Sandstone

Sedimentary Rock (Quartz arenite / Lithic sandstone)

Sandstone (River Cobble) (Clastic Sedimentary Rock (primarily Quartz with Feldspar)) — sedimentary

Sandstone (River Cobble)

Clastic Sedimentary Rock (primarily Quartz with Feldspar)

Sandstone (Arenite) — sedimentary

Sandstone

Arenite

Sandstone (Sandstone (SiO2-rich clastic sedimentary rock)) — sedimentary

Sandstone

Sandstone (SiO2-rich clastic sedimentary rock)

Sandstone (Quartzose) (Sandstone (clastic sedimentary rock, primarily SiO2)) — sedimentary

Sandstone (Quartzose)

Sandstone (clastic sedimentary rock, primarily SiO2)

Sandstone (Greywacke) (Clastic Sedimentary Rock (SiO2 with lithic fragments)) — sedimentary

Sandstone (Greywacke)

Clastic Sedimentary Rock (SiO2 with lithic fragments)

Unidentified dark gray rock fragment (Likely fine-grained basalt or andesite; exact identification requires testing) — igneous

Unidentified dark gray rock fragment

Likely fine-grained basalt or andesite; exact identification requires testing

Rounded gray river pebble, likely fine-grained basalt or andesite (Basaltic-andesitic volcanic rock; commonly plagioclase feldspar, pyroxene, and minor iron oxides) — igneous

Rounded gray river pebble, likely fine-grained basalt or andesite

Basaltic-andesitic volcanic rock; commonly plagioclase feldspar, pyroxene, and minor iron oxides

Sandstone (Iron-stained) (Arenite (primarily SiO2 with Fe2O3 staining)) — sedimentary

Sandstone (Iron-stained)

Arenite (primarily SiO2 with Fe2O3 staining)

Sandstone Pebble (Arenite (SiO2 with minor mineral cements)) — sedimentary

Sandstone Pebble

Arenite (SiO2 with minor mineral cements)

Sandstone (Arenite (SiO2 based)) — sedimentary

Sandstone

Arenite (SiO2 based)

Sandstone (Ferruginous) (Arenite with Iron Oxide staining (Fe2O3)) — sedimentary

Sandstone (Ferruginous)

Arenite with Iron Oxide staining (Fe2O3)

Sandstone (Quartzose Sandstone) (Clastic Terrigenous Sedimentary Rock (primarily SiO2)) — sedimentary

Sandstone (Quartzose Sandstone)

Clastic Terrigenous Sedimentary Rock (primarily SiO2)

River Stone (likely Quartzite or Chert) (Sedimentary rock composed of Silicon Dioxide (SiO2)) — sedimentary

River Stone (likely Quartzite or Chert)

Sedimentary rock composed of Silicon Dioxide (SiO2)

Sandstone (Clastic Sedimentary Rock (primarily Quartz, SiO2)) — sedimentary

Sandstone

Clastic Sedimentary Rock (primarily Quartz, SiO2)

Fossiliferous Limestone (Biogenic Sedimentary Rock (Calcium Carbonate with Fossils)) — sedimentary

Fossiliferous Limestone

Biogenic Sedimentary Rock (Calcium Carbonate with Fossils)

Sandstone (Water-worn Pebble) (Clastic Sedimentary Rock (primarily Quartz and Feldspar)) — sedimentary

Sandstone (Water-worn Pebble)

Clastic Sedimentary Rock (primarily Quartz and Feldspar)

Sandstone (Arenite (primarily Quartz-rich sedimentary rock)) — sedimentary

Sandstone

Arenite (primarily Quartz-rich sedimentary rock)

Shale (Beach-worn) (Laminated Pelite (primarily clay minerals and quartz)) — sedimentary

Shale (Beach-worn)

Laminated Pelite (primarily clay minerals and quartz)

Likely weathered sandstone or iron-stained sedimentary rock (Quartz-rich sandstone; exact identification is limited by the blurred photograph) — sedimentary

Likely weathered sandstone or iron-stained sedimentary rock

Quartz-rich sandstone; exact identification is limited by the blurred photograph

Sandstone (Sedimentary rock composed mainly of quartz sand) — sedimentary

Sandstone

Sedimentary rock composed mainly of quartz sand

Sandstone (Sedimentary Rock (Quartz arenite / Lithic sandstone)) — sedimentary

Sandstone

Sedimentary Rock (Quartz arenite / Lithic sandstone)

Sandstone (River Pebble) (Clastic Sedimentary Rock (primarily Quartzite/Arenite)) — sedimentary

Sandstone (River Pebble)

Clastic Sedimentary Rock (primarily Quartzite/Arenite)

Gravel/Common Siltstone (Siltstone (fine-grained siliciclastic sedimentary rock)) — sedimentary

Gravel/Common Siltstone

Siltstone (fine-grained siliciclastic sedimentary rock)

Sandstone (Quartzose Sandstone) (Clastic sedimentary rock (SiO2 primary composition)) — sedimentary

Sandstone (Quartzose Sandstone)

Clastic sedimentary rock (SiO2 primary composition)