Rock Identifier

Category

Sedimentary

Browse sedimentary specimens identified by the Rock Identifier community.

Learn about Sedimentary in the encyclopedia

Argillite

Arkose

Banded Iron Formation

Banded Iron Formation

Bauxite

Bituminous Coal

Bituminous Coal

Bituminous Shale

Bituminous Shale

Black Shale

Bog Iron

Breccia

Brecciated Jasper

Brecciated Jasper

Bumblebee Jasper

Bumblebee Jasper

Calcarenite

Yellow Jasper (Silicon Dioxide (SiO2) with iron oxide inclusions) — sedimentary

Yellow Jasper

Silicon Dioxide (SiO2) with iron oxide inclusions

Green Opal (Hydrated Silica (SiO2·nH2O)) — mineraloid

Green Opal

Hydrated Silica (SiO2·nH2O)

Orange Calcite (Cleavage Rhomb) (Calcite (Calcium Carbonate, CaCO3)) — mineral

Orange Calcite (Cleavage Rhomb)

Calcite (Calcium Carbonate, CaCO3)

Sandstone (Sedimentary Rock) (Arenite (SiO2 based)) — sedimentary

Sandstone (Sedimentary Rock)

Arenite (SiO2 based)

Chert (specifically Gray/Blue-Gray Chert) (Chert (SiO2)) — sedimentary

Chert (specifically Gray/Blue-Gray Chert)

Chert (SiO2)

Chalk (Sedimentary Limestone) (Calcite (CaCO3)) — sedimentary

Chalk (Sedimentary Limestone)

Calcite (CaCO3)

Common Opal / Chert (Hydrated silica (SiO2·nH2O) or Microcrystalline Quartz (SiO2)) — mineral

Common Opal / Chert

Hydrated silica (SiO2·nH2O) or Microcrystalline Quartz (SiO2)

Red Sandstone (Arenite (SiO2 with Fe2O3)) — sedimentary

Red Sandstone

Arenite (SiO2 with Fe2O3)

Caribbean Calcite (Calcium Carbonate with Argonite (CaCO3)) — mineral

Caribbean Calcite

Calcium Carbonate with Argonite (CaCO3)

Yellow Jasper (Silicon Dioxide (SiO2) with iron oxide impurities) — sedimentary

Yellow Jasper

Silicon Dioxide (SiO2) with iron oxide impurities

Chert (Common Opal/Jasper transition) (Silicon Dioxide (SiO2)) — sedimentary

Chert (Common Opal/Jasper transition)

Silicon Dioxide (SiO2)

Black Opal (Triplet) (Hydrated Silica (SiO2·nH2O)) — mineral

Black Opal (Triplet)

Hydrated Silica (SiO2·nH2O)

Pyrite (Fool's Gold) (Iron Sulfide (FeS2)) — mineral

Pyrite (Fool's Gold)

Iron Sulfide (FeS2)

Glauconitic Sandstone (Glauconitic sandstone ((K,Na)(Fe,Al,Mg)2(Si,Al)4O10(OH)2)) — sedimentary

Glauconitic Sandstone

Glauconitic sandstone ((K,Na)(Fe,Al,Mg)2(Si,Al)4O10(OH)2)

Fossilized Fish Skeleton in Matrix (Vertebrata (Class: Actinopterygii), typically found in limestone or shale matrices) — sedimentary

Fossilized Fish Skeleton in Matrix

Vertebrata (Class: Actinopterygii), typically found in limestone or shale matrices

Moqui Marble (Shaman Stone) (Iron Oxide Concretion (Goethite/Hematite shell with Sandstone core)) — sedimentary

Moqui Marble (Shaman Stone)

Iron Oxide Concretion (Goethite/Hematite shell with Sandstone core)

Sandstone (Ferruginous) (Arenite (Fe-rich)) — sedimentary

Sandstone (Ferruginous)

Arenite (Fe-rich)

Chert (Beach Pebble) (Microcrystalline Quartz (SiO2)) — sedimentary

Chert (Beach Pebble)

Microcrystalline Quartz (SiO2)

Chert (Chalcedony-rich sedimentary rock) (Cryptocrystalline Quartz (SiO2)) — sedimentary

Chert (Chalcedony-rich sedimentary rock)

Cryptocrystalline Quartz (SiO2)

Sandstone (Quartzite-rich Cobble) (Clastic sedimentary rock (primarily SiO2)) — sedimentary

Sandstone (Quartzite-rich Cobble)

Clastic sedimentary rock (primarily SiO2)

Fossiliferous Limestone with Rugose Coral (Calcite (CaCO3) matrix containing Rugosa (order of extinct solitary and colonial corals)) — sedimentary

Fossiliferous Limestone with Rugose Coral

Calcite (CaCO3) matrix containing Rugosa (order of extinct solitary and colonial corals)

Quartz Geode (Silicon Dioxide (SiO2) within a sedimentary or igneous host) — sedimentary

Quartz Geode

Silicon Dioxide (SiO2) within a sedimentary or igneous host

Sandstone (Ferruginous) (Arenite (with Goethite/Limonite cement)) — sedimentary

Sandstone (Ferruginous)

Arenite (with Goethite/Limonite cement)

Sandstone Pebble (Arenite) — sedimentary

Sandstone Pebble

Arenite

Red Jasper (Silicon Dioxide (SiO2) with Hematite impurities) — sedimentary

Red Jasper

Silicon Dioxide (SiO2) with Hematite impurities

Chert (Agatized/Chalcedony variety) (Microcrystalline Quartz (SiO2)) — sedimentary

Chert (Agatized/Chalcedony variety)

Microcrystalline Quartz (SiO2)

Pyrite (Fool's Gold) (Iron Sulfide (FeS2)) — mineral

Pyrite (Fool's Gold)

Iron Sulfide (FeS2)

Yellow Jasper (Jasper (Silicon Dioxide, SiO2)) — sedimentary

Yellow Jasper

Jasper (Silicon Dioxide, SiO2)

Jasper with Hematite Inclusions (Silicon Dioxide (SiO2) with Ferric Oxide (Fe2O3)) — sedimentary

Jasper with Hematite Inclusions

Silicon Dioxide (SiO2) with Ferric Oxide (Fe2O3)

Limonite (Ironstone Concretion) (Hydrated iron(III) oxide-hydroxide (FeO(OH)·nH2O)) — mineral

Limonite (Ironstone Concretion)

Hydrated iron(III) oxide-hydroxide (FeO(OH)·nH2O)

Fossiliferous Limestone (Bioclastic Limestone (CaCO3)) — sedimentary

Fossiliferous Limestone

Bioclastic Limestone (CaCO3)

Fossiliferous Limestone with Brachiopods (Calcium Carbonate (CaCO3) with fossilized Brachiopoda sp. (likely Order Spiriferida or Rhynchonellida)) — sedimentary

Fossiliferous Limestone with Brachiopods

Calcium Carbonate (CaCO3) with fossilized Brachiopoda sp. (likely Order Spiriferida or Rhynchonellida)

Quartz and Mixed Sedimentary Rocks (Silicon Dioxide (SiO2) mixed with various clastic sedimentary lithologies) — sedimentary

Quartz and Mixed Sedimentary Rocks

Silicon Dioxide (SiO2) mixed with various clastic sedimentary lithologies

Red Jasper (Silicon Dioxide (SiO2) with Iron Oxide inclusions) — sedimentary

Red Jasper

Silicon Dioxide (SiO2) with Iron Oxide inclusions

Magnetite / Ironstone (Magnetite (Fe3O4)) — mineral

Magnetite / Ironstone

Magnetite (Fe3O4)

Pyrite (Fool's Gold) (Iron Disulfide (FeS2)) — mineral

Pyrite (Fool's Gold)

Iron Disulfide (FeS2)

Red Jasper (Quartz) (Silicon Dioxide (SiO2) with Iron impurities) — sedimentary

Red Jasper (Quartz)

Silicon Dioxide (SiO2) with Iron impurities

Red Jasper (Microcrystalline Quartz (SiO2)) — sedimentary

Red Jasper

Microcrystalline Quartz (SiO2)

Pyrite (Iron Sulfide (FeS2)) — mineral

Pyrite

Iron Sulfide (FeS2)

Fossiliferous Limestone with Brachiopod (Phylum Brachiopoda in Sedimentary Matrix (CaCO3)) — fossil

Fossiliferous Limestone with Brachiopod

Phylum Brachiopoda in Sedimentary Matrix (CaCO3)

Bivalve Fossil in Sedimentary Matrix (Fossiliferous Mudstone (Class: Bivalvia)) — sedimentary

Bivalve Fossil in Sedimentary Matrix

Fossiliferous Mudstone (Class: Bivalvia)

Red Sandstone (Arenite (Ferruginous Sandstone)) — sedimentary

Red Sandstone

Arenite (Ferruginous Sandstone)