Rock Identifier

Category

Sedimentary Rock (Possibly A Conglomerate Or Coarse Grained Sandstone)

Browse sedimentary rock (possibly a conglomerate or coarse grained sandstone) specimens identified by the Rock Identifier community.

Learn about Sedimentary Rock (Possibly A Conglomerate Or Coarse Grained Sandstone) in the encyclopedia

Conglomerate

Sandstone

Lithic Sandstone

Lithic Sandstone

Asphalt Rock

Breccia

Calcirudite

Arkose

Quartzite

Calcarenite

Pegmatite

Turbidite

Gabbro

Brown Sandstone (River Rock) (Arenite) — sedimentary

Brown Sandstone (River Rock)

Arenite

Sandstone (lithic wacke) (Arenite / Lithic Wacke (mostly SiO2 with rock fragments)) — sedimentary

Sandstone (lithic wacke)

Arenite / Lithic Wacke (mostly SiO2 with rock fragments)

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

Sandstone (Quartzose)

Arenite (primarily SiO2)

Siltstone (Siltstone) — sedimentary

Siltstone

Siltstone

Quartz-rich granitic rock, possibly pegmatite (Granite or granitic pegmatite; primarily quartz (SiO₂), feldspar, and minor mica/iron oxides) — igneous

Quartz-rich granitic rock, possibly pegmatite

Granite or granitic pegmatite; primarily quartz (SiO₂), feldspar, and minor mica/iron oxides

Sandstone (likely Ferruginous) (Sandstone (SiO2 with iron oxides)) — sedimentary

Sandstone (likely Ferruginous)

Sandstone (SiO2 with iron oxides)

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

Sandstone (Quartzose)

Sandstone (clastic sedimentary rock, primarily SiO2)

Sandstone (Arenite (SiO2 based)) — sedimentary

Sandstone

Arenite (SiO2 based)

Sandstone (Arenite) — Sedimentary

Sandstone

Arenite

Sandstone (Arenite) — sedimentary

Sandstone

Arenite

Likely tumbled basalt or vesicular volcanic rock (Basalt, possibly amygdaloidal basalt) — igneous

Likely tumbled basalt or vesicular volcanic rock

Basalt, possibly amygdaloidal basalt

Sandstone (Arenite (SiO2 principal)) — sedimentary

Sandstone

Arenite (SiO2 principal)

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

Sandstone

Clastic sedimentary rock (primarily SiO2)

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

Sandstone

Clastic Sedimentary Rock (composed primarily of Quartz, SiO2)

Sandstone (Arenite (primarily SiO2)) — sedimentary

Sandstone

Arenite (primarily SiO2)

Fossiliferous Limestone (Biogenic Limestone (Calcium Carbonate, CaCO3)) — sedimentary

Fossiliferous Limestone

Biogenic Limestone (Calcium Carbonate, CaCO3)

Granite (Granitic plutonic rock, chiefly quartz, alkali feldspar, plagioclase, and mica/amphibole) — igneous

Granite

Granitic plutonic rock, chiefly quartz, alkali feldspar, plagioclase, and mica/amphibole

Sandstone (Arenite) — sedimentary

Sandstone

Arenite

Sandstone (Arenite (primarily SiO2)) — sedimentary

Sandstone

Arenite (primarily SiO2)

Sandstone (Micaceous) (Clastic Sedimentary Rock (primarily SiO2 with Mica)) — sedimentary

Sandstone (Micaceous)

Clastic Sedimentary Rock (primarily SiO2 with Mica)

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

Sandstone Grain

Clastic Sedimentary Rock Grain (SiO2 dominated)

Sandstone (Sandstone (SiO2 dominated)) — sedimentary

Sandstone

Sandstone (SiO2 dominated)

Sandstone (Ferruginous) (Arenite (SiO2 with iron oxide impurities)) — sedimentary

Sandstone (Ferruginous)

Arenite (SiO2 with iron oxide impurities)

Quartz-rich granite or granitic gneiss (Granite; chiefly quartz (SiO₂), feldspar, and mica) — igneous

Quartz-rich granite or granitic gneiss

Granite; chiefly quartz (SiO₂), feldspar, and mica

Quartz pebble (Silicon dioxide (SiO2)) — sedimentary

Quartz pebble

Silicon dioxide (SiO2)

Weathered granitic rock fragment (Likely granite or granodiorite; quartz–feldspar–mica aggregate) — igneous

Weathered granitic rock fragment

Likely granite or granodiorite; quartz–feldspar–mica aggregate

Aggregate Concrete (Anthropogenic Conglomerate (Technosol)) — sedimentary

Aggregate Concrete

Anthropogenic Conglomerate (Technosol)

Weathered quartz-rich rock, possibly granite or quartzite (Indeterminate; likely quartz–feldspar aggregate, potentially granitic or quartzitic material) — igneous

Weathered quartz-rich rock, possibly granite or quartzite

Indeterminate; likely quartz–feldspar aggregate, potentially granitic or quartzitic material

Gneiss (Gneiss) — metamorphic

Gneiss

Gneiss

Siltstone with Iron Staining (Siltstone (primarily SiO2 with Fe2O3 staining)) — sedimentary

Siltstone with Iron Staining

Siltstone (primarily SiO2 with Fe2O3 staining)

Sandstone (Arenite (SiO2 based typically)) — sedimentary

Sandstone

Arenite (SiO2 based typically)

Basalt (Fine-grained mafic volcanic rock, chiefly plagioclase feldspar, pyroxene, and commonly olivine) — igneous

Basalt

Fine-grained mafic volcanic rock, chiefly plagioclase feldspar, pyroxene, and commonly olivine

Exposed aggregate concrete (stone-chip surface) (Portland-cement concrete containing natural aggregate; not a natural rock) — sedimentary

Exposed aggregate concrete (stone-chip surface)

Portland-cement concrete containing natural aggregate; not a natural rock

Weathered limestone or calcareous sandstone (Calcite-rich carbonate rock, likely limestone (CaCO₃), possibly sandy or dolomitic) — sedimentary

Weathered limestone or calcareous sandstone

Calcite-rich carbonate rock, likely limestone (CaCO₃), possibly sandy or dolomitic

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

Sandstone

Arenite (composed primarily of SiO2)

Red Siltstone (Siltstone (composed mainly of SiO2 and Fe2O3)) — sedimentary

Red Siltstone

Siltstone (composed mainly of SiO2 and Fe2O3)

Quartz Pebble (Silicon dioxide (SiO2)) — sedimentary

Quartz Pebble

Silicon dioxide (SiO2)

Sandstone Pebble (Quartz Arenite / Sandstone) — sedimentary

Sandstone Pebble

Quartz Arenite / Sandstone

Sandstone (Arenite (primarily SiO2)) — sedimentary

Sandstone

Arenite (primarily SiO2)

Shale or Mudstone River Pebble (Argillaceous sedimentary rock) — sedimentary

Shale or Mudstone River Pebble

Argillaceous sedimentary rock

Sandstone (Sandstone (Arenite)) — sedimentary

Sandstone

Sandstone (Arenite)

Small weathered mineral/rock fragment (Uncertain from image; possibly quartz-rich sandstone or a feldspar-bearing rock) — mineral

Small weathered mineral/rock fragment

Uncertain from image; possibly quartz-rich sandstone or a feldspar-bearing rock