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

Carnelian Agate (Chalcedony (SiO2)) — mineral

Carnelian Agate

Chalcedony (SiO2)

Quartz-veined Limestone (Sedimentary limestone with quartz/calcite veinlets) — sedimentary

Quartz-veined Limestone

Sedimentary limestone with quartz/calcite veinlets

Fossiliferous Sandstone (Sedimentary rock containing invertebrate fossils) — fossil

Fossiliferous Sandstone

Sedimentary rock containing invertebrate fossils

Sandstone (Quartz Arenite / Clastic Sedimentary Rock) — sedimentary

Sandstone

Quartz Arenite / Clastic Sedimentary Rock

Sandstone (Clastic sedimentary rock (Quartz arenite)) — sedimentary

Sandstone

Clastic sedimentary rock (Quartz arenite)

Sandstone and Mixed Rock Assemblage (Clastic Sedimentary Rock / Quartz Arenite) — sedimentary

Sandstone and Mixed Rock Assemblage

Clastic Sedimentary Rock / Quartz Arenite

Sandstone and Gravel Aggregate (Clastic Sedimentary Rock / Quartzose Sandstone) — sedimentary

Sandstone and Gravel Aggregate

Clastic Sedimentary Rock / Quartzose Sandstone

Pebble (Lithified rock fragment / Sedimentary clast) — sedimentary

Pebble

Lithified rock fragment / Sedimentary clast

Ferruginous Sandstone (River Pebble) (Clastic Sedimentary Rock (Iron-rich)) — sedimentary

Ferruginous Sandstone (River Pebble)

Clastic Sedimentary Rock (Iron-rich)

Red Jasper or Iron-rich Sandstone (SiO2 with Fe2O3 inclusions (if Jasper) or Arenite (if Sandstone)) — sedimentary

Red Jasper or Iron-rich Sandstone

SiO2 with Fe2O3 inclusions (if Jasper) or Arenite (if Sandstone)

Jasper (SiO2) — Mineral

Jasper

SiO2

Geode Nodule Fragment (Quartz / Chalcedony Nodule) — sedimentary

Geode Nodule Fragment

Quartz / Chalcedony Nodule

Brecciated Jasper or Agatized Dinosaur Bone (SiO2) — gemstone

Brecciated Jasper or Agatized Dinosaur Bone

SiO2

Orange Calcite (Calcite (CaCO3)) — mineral

Orange Calcite

Calcite (CaCO3)

Rodonite (Rhodonite (MnSiO3)) — mineral

Rodonite

Rhodonite (MnSiO3)

Quartz (Silicon Dioxide (SiO2)) — mineral

Quartz

Silicon Dioxide (SiO2)

Galena (Lead sulfide (PbS)) — mineral

Galena

Lead sulfide (PbS)

Apatite (Calcium phosphate fluoride/chloride, Ca5(PO4)3(F,Cl,OH)) — mineral

Apatite

Calcium phosphate fluoride/chloride, Ca5(PO4)3(F,Cl,OH)

Apatite (Calcium phosphate fluoride/chloride, Ca5(PO4)3(F,Cl,OH)) — mineral

Apatite

Calcium phosphate fluoride/chloride, Ca5(PO4)3(F,Cl,OH)

Quartz-veined Sedimentary Rock (Sedimentary rock with hydrothermal quartz veins) — sedimentary

Quartz-veined Sedimentary Rock

Sedimentary rock with hydrothermal quartz veins

Sedimentary Pebble (Sandstone) (Clastic Sedimentary Rock (SiO2 dominant)) — sedimentary

Sedimentary Pebble (Sandstone)

Clastic Sedimentary Rock (SiO2 dominant)

Polished sedimentary pebble, likely sandstone or quartzite (Quartz-rich sandstone (SiO₂-dominant), possibly weakly metamorphosed quartzite) — sedimentary

Polished sedimentary pebble, likely sandstone or quartzite

Quartz-rich sandstone (SiO₂-dominant), possibly weakly metamorphosed quartzite

Banded chert or siliceous sedimentary rock (Microcrystalline quartz (chalcedony), SiO₂, with iron-oxide staining and possible carbonate/clay layers) — sedimentary

Banded chert or siliceous sedimentary rock

Microcrystalline quartz (chalcedony), SiO₂, with iron-oxide staining and possible carbonate/clay layers

Weathered sedimentary cobble, likely limestone or calcareous sandstone (Indeterminate carbonate-rich clastic rock; possibly micritic limestone or calcarenite) — sedimentary

Weathered sedimentary cobble, likely limestone or calcareous sandstone

Indeterminate carbonate-rich clastic rock; possibly micritic limestone or calcarenite

Weathered sedimentary rock, possibly sandstone (Indeterminate clastic sediment; probable quartz-rich sandstone) — sedimentary

Weathered sedimentary rock, possibly sandstone

Indeterminate clastic sediment; probable quartz-rich sandstone

Unidentified pale sedimentary rock, likely limestone (Calcite-rich limestone (CaCO₃), possibly fossiliferous or weathered micritic limestone) — sedimentary

Unidentified pale sedimentary rock, likely limestone

Calcite-rich limestone (CaCO₃), possibly fossiliferous or weathered micritic limestone

Banded chert or silicified sedimentary rock (Microcrystalline quartz (chalcedony), SiO₂, with iron-oxide and other mineral bands) — sedimentary

Banded chert or silicified sedimentary rock

Microcrystalline quartz (chalcedony), SiO₂, with iron-oxide and other mineral bands

Common Pebble / Sedimentary Rock Fragment (Lithified clastic sediment) — sedimentary

Common Pebble / Sedimentary Rock Fragment

Lithified clastic sediment

Sandstone (Quartz-rich clastic sandstone; exact variety cannot be determined from the image) — sedimentary

Sandstone

Quartz-rich clastic sandstone; exact variety cannot be determined from the image

Water-worn sandstone pebble (Quartz-rich sandstone (composition and exact subtype uncertain from image)) — sedimentary

Water-worn sandstone pebble

Quartz-rich sandstone (composition and exact subtype uncertain from image)

Tumbled clear quartz (Quartz (SiO₂)) — mineral

Tumbled clear quartz

Quartz (SiO₂)

Tumbled clear quartz (Quartz (silicon dioxide, SiO₂)) — mineral

Tumbled clear quartz

Quartz (silicon dioxide, SiO₂)

Waterworn pebble, possibly iron-rich basalt or river stone (Unidentified lithic clast; composition cannot be determined reliably from the image) — igneous

Waterworn pebble, possibly iron-rich basalt or river stone

Unidentified lithic clast; composition cannot be determined reliably from the image

Likely blue-gray slate (Slate, a fine-grained metamorphic rock composed mainly of mica-group minerals and quartz) — metamorphic

Likely blue-gray slate

Slate, a fine-grained metamorphic rock composed mainly of mica-group minerals and quartz

Limestone (Calcium Carbonate (CaCO3)) — sedimentary

Limestone

Calcium Carbonate (CaCO3)

Small quartz-rich mineral fragment (Quartz (SiO₂), possibly milky or chalcedonic quartz) — mineral

Small quartz-rich mineral fragment

Quartz (SiO₂), possibly milky or chalcedonic quartz

Sandstone (Quartz Sandstone (predominantly)) — Sedimentary

Sandstone

Quartz Sandstone (predominantly)

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

Shale creek bed

Shale (fine-grained clastic sedimentary rock)

Limonite (Iron Stone Concretion) (Limonite (Hydrous Iron Oxide) - FeO(OH)·nH2O) — mineral

Limonite (Iron Stone Concretion)

Limonite (Hydrous Iron Oxide) - FeO(OH)·nH2O

Fossiliferous Limestone or Mudstone (Sedimentary Rock with Invertebrate Fossils) — sedimentary

Fossiliferous Limestone or Mudstone

Sedimentary Rock with Invertebrate Fossils

Sandstone (Sedimentary Rock (Quartz Arenite)) — sedimentary

Sandstone

Sedimentary Rock (Quartz Arenite)

Sandstone (Sedimentary Rock (Quartz arenite)) — sedimentary

Sandstone

Sedimentary Rock (Quartz arenite)