Rock Identifier

Category

Sedimentary Rock

Browse sedimentary rock specimens identified by the Rock Identifier community.

Learn about Sedimentary Rock in the encyclopedia

Asphalt Rock

Asphalt Rock

Rock Gypsum

Rock Gypsum

Conglomerate

Conglomerate

Rock Salt

Rock Salt

Coral Rock

Coral Rock

Coal

Coal

Limestone

Limestone

Calc-Silicate Rock

Calc-Silicate Rock

Claystone

Claystone

Talc-carbonate Rock

Talc-carbonate Rock

Mudstone

Mudstone

Ironstone

Ironstone

Sandstone (Arenite (SiO2 based with cement)) — sedimentary

Sandstone

Arenite (SiO2 based with cement)

Quartz Geode (Quartz (Silicon Dioxide - SiO2) within a Chalcedony and Limonite shell) — sedimentary

Quartz Geode

Quartz (Silicon Dioxide - SiO2) within a Chalcedony and Limonite shell

Limestone (Calcium Carbonate (CaCO3)) — sedimentary

Limestone

Calcium Carbonate (CaCO3)

Limestone (Limestone (Calcium Carbonate: CaCO3)) — sedimentary

Limestone

Limestone (Calcium Carbonate: CaCO3)

Sandstone (likely Arkosic) (Arenite (SiO2 with KAlSi3O8)) — sedimentary

Sandstone (likely Arkosic)

Arenite (SiO2 with KAlSi3O8)

Limestone (Weathered) (Calcium Carbonate (CaCO3)) — sedimentary

Limestone (Weathered)

Calcium Carbonate (CaCO3)

Quartz Geode (Citrine or Iron-stained Quartz) (Silicon Dioxide (SiO2)) — mineral

Quartz Geode (Citrine or Iron-stained Quartz)

Silicon Dioxide (SiO2)

Geode (Unopened) (Silica-rich concretion (SiO2)) — sedimentary

Geode (Unopened)

Silica-rich concretion (SiO2)

Yellow Jasper (Silicon dioxide (SiO2)) — sedimentary

Yellow Jasper

Silicon dioxide (SiO2)

Gray Limestone (Carbonate rock (CaCO3)) — sedimentary

Gray Limestone

Carbonate rock (CaCO3)

Limestone (Carbonate rock (CaCO3)) — sedimentary

Limestone

Carbonate rock (CaCO3)

Pebble (Clast (specifically a granule or small pebble)) — Sedimentary

Pebble

Clast (specifically a granule or small pebble)

Chert (River Stone) (Microcrystalline Quartz (SiO2)) — sedimentary

Chert (River Stone)

Microcrystalline Quartz (SiO2)

Conglomerate (Conglomerate) — sedimentary

Conglomerate

Conglomerate

Ferruginous Sandstone (Arenite with Iron-Oxide cement (Fe2O3 · nH2O)) — sedimentary

Ferruginous Sandstone

Arenite with Iron-Oxide cement (Fe2O3 · nH2O)

Piddock-bored Mudstone (Lutite (Siltstone or Mudstone) with Pholad borings) — sedimentary

Piddock-bored Mudstone

Lutite (Siltstone or Mudstone) with Pholad borings

Sandstone (Quartzose) (Arenite (primarily SiO2)) — sedimentary

Sandstone (Quartzose)

Arenite (primarily SiO2)

Gneiss (Gneiss (High-grade metamorphic rock)) — metamorphic

Gneiss

Gneiss (High-grade metamorphic rock)

Sandstone (Arenite (SiO2 primarily)) — sedimentary

Sandstone

Arenite (SiO2 primarily)

Sandstone (Arenite (SiO2 primarily)) — sedimentary

Sandstone

Arenite (SiO2 primarily)

Sandstone (Arenite (primarily SiO2)) — sedimentary

Sandstone

Arenite (primarily SiO2)

Sandstone (Arenite (SiO2 primarily)) — sedimentary

Sandstone

Arenite (SiO2 primarily)

Limonite (Iron Ore) (Limonite (Hydrous iron(III) oxide-hydroxide mixture, primarily FeO(OH)·nH2O)) — mineral

Limonite (Iron Ore)

Limonite (Hydrous iron(III) oxide-hydroxide mixture, primarily FeO(OH)·nH2O)

Sedimentary Breccia (Clastic Breccia (CaCO3/SiO2 matrix)) — sedimentary

Sedimentary Breccia

Clastic Breccia (CaCO3/SiO2 matrix)

Sandstone (Arenite (SiO2 based)) — sedimentary

Sandstone

Arenite (SiO2 based)

Sandstone (Quartzose) (Arenite (SiO2 principal composition)) — sedimentary

Sandstone (Quartzose)

Arenite (SiO2 principal composition)

Sandstone (Arenite) — sedimentary

Sandstone

Arenite

Garnet Schist (Almandine Garnet-bearing Mica Schist) — metamorphic

Garnet Schist

Almandine Garnet-bearing Mica Schist

Sandstone Concretion (Sedimentary Clastic Rock (Silicate-rich)) — sedimentary

Sandstone Concretion

Sedimentary Clastic Rock (Silicate-rich)

Sandstone (Ferruginous) (Arenite (SiO2 with Fe2O3 inclusions)) — sedimentary

Sandstone (Ferruginous)

Arenite (SiO2 with Fe2O3 inclusions)

Sandstone (Arenite (SiO2 primarily)) — sedimentary

Sandstone

Arenite (SiO2 primarily)

Petrified Wood (Silicified Wood (SiO2)) — metamorphic

Petrified Wood

Silicified Wood (SiO2)

Sandstone Concretion (Septarian Concretion (Nodule)) — sedimentary

Sandstone Concretion

Septarian Concretion (Nodule)

Sandstone (Micaceous Sandstone) (Arenite (SiO2 with KAl2(AlSi3O10)(OH)2 inclusions)) — sedimentary

Sandstone (Micaceous Sandstone)

Arenite (SiO2 with KAl2(AlSi3O10)(OH)2 inclusions)

Sandstone (Arenite (primarily SiO2 with various cementing agents)) — sedimentary

Sandstone

Arenite (primarily SiO2 with various cementing agents)

Sandstone (likely Quartz Sandstone) (Arenite (composed primarily of SiO2)) — sedimentary

Sandstone (likely Quartz Sandstone)

Arenite (composed primarily of SiO2)

River Rock (likely Basalt or Greywacke) (Basalt or Lithic Sandstone) — Igneous or Sedimentary (water-worn)

River Rock (likely Basalt or Greywacke)

Basalt or Lithic Sandstone

Igneous or Sedimentary (water-worn)

Sandstone (Arenite) — sedimentary

Sandstone

Arenite

Banded Sandstone (Arenite (with iron oxide banding)) — sedimentary

Banded Sandstone

Arenite (with iron oxide banding)

Sandstone (Wonderstone) (Arenite (composed primarily of SiO2 with Fe2O3 impurities)) — sedimentary

Sandstone (Wonderstone)

Arenite (composed primarily of SiO2 with Fe2O3 impurities)

Sandstone (Arenite (SiO2 primarily)) — sedimentary

Sandstone

Arenite (SiO2 primarily)

Sandstone (Arenite) — sedimentary

Sandstone

Arenite