Sandstone
Sandstone (Arenite)
sedimentary
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
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Sandstone
Clastic sedimentary rock (primarily SiO2)
sedimentary
Sandstone (Weathered / Crushed)
Quartz Sandstone
sedimentary
Sandstone
Arenite
sedimentary
Sandstone
Sedimentary Rock (Quartz Sandstone)
sedimentary
Sandstone
Arenite (primarily SiO2)
sedimentary
Weathered iron-rich rock, possibly limonite-bearing sandstone or laterite
Limonite/goethite-rich ferruginous rock; exact identification requires testing
sedimentary
Sandstone
Arenite (SiO2 based)
sedimentary
Sandstone (Red / Iron-stained)
Sandstone (composed predominantly of SiO2 with Fe2O3 cement)
sedimentary
Sandstone
Arenite (composed primarily of SiO2)
sedimentary
Sandstone
Arenite (primarily SiO2)
sedimentary
Sandstone
Arenite
sedimentary
Weathered quartz-rich rock, likely quartzite
Quartzite (mostly microcrystalline SiO₂), possibly quartz-rich sandstone
metamorphic
Gneiss (likely garnet-bearing or migmatitic gneiss)
Felsic banded gneiss; chiefly quartz, feldspar, mica, and possibly garnet
metamorphic
Shale with Iron Staining
Fissile Mudrock (Sedimentary Rock)
sedimentary
Sandstone
Sandstone (Clastic Sedimentary Rock)
Sedimentary Rock
Weathered quartz-rich rock, possibly granite or pegmatite fragment
Uncertain; likely quartz–feldspar aggregate, potentially granitic pegmatite
igneous
Sandstone
Arenite (primarily SiO2)
sedimentary
Granite, possibly granodiorite
Coarse-grained felsic plutonic rock; chiefly quartz (SiO₂), potassium feldspar and plagioclase feldspar, with biotite and/or hornblende
igneous
Diorite (possibly fine-grained variety or a related intermediate intrusive rock like a felsic gabbro or a dark granodiorite)
Diorite (Igneous rock, intrusive, intermediate composition)
Igneous Rock
Sandstone
Arenite
sedimentary
Sandstone
Arenite
sedimentary
Sandstone
Arenite (SiO2 based with mineral cement)
sedimentary
Sandstone
Sedimentary Rock (Quartz Sandstone)
sedimentary
Sandstone
Arenite
sedimentary
Sandstone
Arenite (SiO2 predominantly)
sedimentary
Sandstone
Arenite (Sedimentary Rock)
sedimentary
Sandstone
Sandstone (Quartz-rich Arenite / SiO2)
sedimentary
Sandstone (Quartzose Sandstone)
Sandstone (SiO2 dominant composition)
sedimentary
Sandstone
Sedimentary rock composed mainly of sand-sized minerals or rock grains
sedimentary
Sandstone
Sedimentary Rock (Quartz/Feldspar grains cemented together)
sedimentary
Siltstone Pebble
Siltstone (composed of microscopic quartz and clay minerals)
sedimentary
Quartz-rich granite or pegmatitic rock
Granite, composed mainly of quartz, feldspar, and mica; exact identification is uncertain from the photograph
igneous
Sandstone
Sandstone (Silicon dioxide, SiO2 based)
sedimentary
Likely labradorite-bearing rocks
Labradorite, a plagioclase feldspar (approximately NaAlSi₃O₈–CaAl₂Si₂O₈), possibly in mafic host rock
mineral
Sandstone Pebble
Sedimentary Rock (Quartzose Sandstone)
sedimentary
Sandstone (Greywacke)
Sandstone (SiO2 enriched with lithic fragments)
sedimentary
Sandstone (Quartzose Sandstone / Feldspathic Sandstone)
SiO2 with minor impurities (Fe2O3, KAlSi3O8)
sedimentary
Sandstone
Arenite
sedimentary
Sandstone
Arenite
sedimentary
Asphalt Concrete (Bituminous Conglomerate)
Anthropogenic Bituminous Conglomerate
sedimentary
Sandstone
Arenite (major component SiO2)
sedimentary