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

Likely weathered sandstone or quartzite (Quartz-rich sandstone (SiO₂-dominant); possibly metamorphosed to quartzite) — sedimentary

Likely weathered sandstone or quartzite

Quartz-rich sandstone (SiO₂-dominant); possibly metamorphosed to quartzite

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

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

Sandstone

Arenite (composed primarily of SiO2)

Sandstone (Sedimentary Rock (Quartz Sandstone)) — sedimentary

Sandstone

Sedimentary Rock (Quartz Sandstone)

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

Siltstone with Iron Staining

Siltstone (primarily SiO2 with Fe2O3 staining)

Sandstone Pebble (Sedimentary Rock (Quartzose Sandstone)) — sedimentary

Sandstone Pebble

Sedimentary Rock (Quartzose Sandstone)

Rounded granitic pebble (Granite, chiefly quartz, feldspar, and mica/amphibole) — igneous

Rounded granitic pebble

Granite, chiefly quartz, feldspar, and mica/amphibole

Sandstone Pebble (Quartz Arenite / Sandstone) — sedimentary

Sandstone Pebble

Quartz Arenite / Sandstone

Granite or granitic gneiss cobble (Quartz–feldspar–mica aggregate; possibly weathered gneiss) — igneous

Granite or granitic gneiss cobble

Quartz–feldspar–mica aggregate; possibly weathered gneiss

Sandstone (Sandstone (composed mainly of Quartz, SiO2, and Feldspar)) — sedimentary

Sandstone

Sandstone (composed mainly of Quartz, SiO2, and Feldspar)

Sandstone (Arenite (primarily SiO2)) — sedimentary

Sandstone

Arenite (primarily SiO2)

Quartzite Sandstone / Quartz Sandstone (Quartz Sandstone (SiO2 with minor mineral impurities)) — sedimentary

Quartzite Sandstone / Quartz Sandstone

Quartz Sandstone (SiO2 with minor mineral impurities)

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

Granite

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

Gneiss (Gneiss) — metamorphic

Gneiss

Gneiss

Perforated beach pebble (likely sandstone or chert) (Indeterminate siliciclastic sedimentary rock; predominantly quartz (SiO₂), possibly calcareous cement) — sedimentary

Perforated beach pebble (likely sandstone or chert)

Indeterminate siliciclastic sedimentary rock; predominantly quartz (SiO₂), possibly calcareous cement

Sandstone (Sandstone (Siliciclastic Sedimentary Rock)) — sedimentary

Sandstone

Sandstone (Siliciclastic Sedimentary Rock)

Likely weathered quartzite or quartz-rich sandstone (Quartzite; predominantly microcrystalline quartz (SiO₂), possibly retaining sandstone texture) — metamorphic

Likely weathered quartzite or quartz-rich sandstone

Quartzite; predominantly microcrystalline quartz (SiO₂), possibly retaining sandstone texture

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

Sandstone (Lithic Sandstone / Greywacke)

Sandstone (SiO2 rich clastic sedimentary rock)

Sandstone (Quartzose Sandstone / Feldspathic Sandstone) (SiO2 with minor impurities (Fe2O3, KAlSi3O8)) — sedimentary

Sandstone (Quartzose Sandstone / Feldspathic Sandstone)

SiO2 with minor impurities (Fe2O3, KAlSi3O8)

Sandstone (Arenite (SiO2 predominantly)) — sedimentary

Sandstone

Arenite (SiO2 predominantly)

Sandstone (Arenite (Silicon Dioxide with various mineral cements)) — sedimentary

Sandstone

Arenite (Silicon Dioxide with various mineral cements)

Sandstone (Sandstone (Quartz-rich Arenite / SiO2)) — sedimentary

Sandstone

Sandstone (Quartz-rich Arenite / SiO2)

Sandstone (Arenite (Sedimentary rock composed of sand-sized minerals or rock grains)) — sedimentary

Sandstone

Arenite (Sedimentary rock composed of sand-sized minerals or rock grains)

Sandstone Pebble (Sedimentary Rock (Quartzose Sandstone)) — sedimentary

Sandstone Pebble

Sedimentary Rock (Quartzose Sandstone)

Sandstone or similar clastic rock (Arenite) — sedimentary

Sandstone or similar clastic rock

Arenite

Biotite-rich granite or granitic gneiss (Quartz–feldspar–biotite granite; possibly foliated granitic gneiss) — igneous

Biotite-rich granite or granitic gneiss

Quartz–feldspar–biotite granite; possibly foliated granitic gneiss

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

Sandstone (Quartzose)

Arenite (primarily SiO2)

Sandstone (Arenite (primarily SiO2)) — sedimentary

Sandstone

Arenite (primarily SiO2)

Likely weathered sandstone or quartzite (Quartz-rich sandstone; possibly metamorphosed to quartzite (SiO₂-dominant)) — sedimentary

Likely weathered sandstone or quartzite

Quartz-rich sandstone; possibly metamorphosed to quartzite (SiO₂-dominant)

Chert or flint nodule/fragment (Microcrystalline quartz (SiO₂), commonly with chalcedony) — sedimentary

Chert or flint nodule/fragment

Microcrystalline quartz (SiO₂), commonly with chalcedony

Quartz-rich weathered rock, possibly quartzite (Quartzite (mostly SiO₂); exact identification is uncertain from the image) — metamorphic

Quartz-rich weathered rock, possibly quartzite

Quartzite (mostly SiO₂); exact identification is uncertain from the image

Sandstone (Sandstone (clastic sedimentary rock)) — sedimentary

Sandstone

Sandstone (clastic sedimentary rock)

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

Sandstone

Clastic sedimentary rock (primarily SiO2)

Sandstone (Arenite (predominantly SiO2 with iron oxides)) — sedimentary

Sandstone

Arenite (predominantly SiO2 with iron oxides)

Sandstone (Limonitic/Iron-stained) (Sandstone (containing Quartz, SiO2, and Limonite, FeO(OH)·nH2O)) — sedimentary

Sandstone (Limonitic/Iron-stained)

Sandstone (containing Quartz, SiO2, and Limonite, FeO(OH)·nH2O)

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

Sandstone (likely Quartzose)

Clastic sedimentary rock (SiO2 primary)

Sandstone (Quartz-rich) (Arenite) — sedimentary

Sandstone (Quartz-rich)

Arenite

Granite fragment (likely weathered granite) (Granite; mainly quartz (SiO₂), feldspar, and mica (biotite/muscovite)) — igneous

Granite fragment (likely weathered granite)

Granite; mainly quartz (SiO₂), feldspar, and mica (biotite/muscovite)

Sandstone (Sedimentary Rock (Quartz/Feldspar grains cemented together)) — sedimentary

Sandstone

Sedimentary Rock (Quartz/Feldspar grains cemented together)

Sandstone (Arenite (primarily SiO2)) — sedimentary

Sandstone

Arenite (primarily SiO2)

Sandstone (Quartzose Sandstone) (Sandstone (SiO2 dominant composition)) — sedimentary

Sandstone (Quartzose Sandstone)

Sandstone (SiO2 dominant composition)

Weathered sandstone or sandy sediment (Quartz-rich siliciclastic sediment, likely weakly cemented sandstone (quartz ± feldspar and clay minerals)) — sedimentary

Weathered sandstone or sandy sediment

Quartz-rich siliciclastic sediment, likely weakly cemented sandstone (quartz ± feldspar and clay minerals)