Sandstone
Clastic sedimentary rock (Quartz arenite)
sedimentary
Category
Sedimentary Rock (Specifically A Clastic Sedimentary Rock Formed Into A Cobble)
Browse sedimentary rock (specifically a clastic sedimentary rock formed into a cobble) specimens identified by the Rock Identifier community.
Learn about Sedimentary Rock (Specifically A Clastic Sedimentary Rock Formed Into A Cobble) in the encyclopedia
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Sandstone (Calcareous/Lithic)
Sedimentary Rock (Clastic Sandstone with Calcium Carbonate cement)
sedimentary
Chert (Iron-stained)
Chert (Cryptocrystalline Silica, SiO2)
sedimentary
Sandstone
Arenite (primarily SiO2)
sedimentary
Jasper (Yellow Jasper)
Silicon Dioxide (SiO2) with iron inclusions
sedimentary
Foliated metamorphic cobble, likely gneiss
Biotite–quartz–feldspar gneiss (tentative)
metamorphic
Sandstone (Quartzose Pebble)
Clastic sedimentary rock (primarily SiO2)
sedimentary
Sandstone
Arenite
sedimentary
Limestone with Calcareous Accretion
Sedimentary Carbonate Rock (CaCO3)
sedimentary
Sandstone (with Iron concretions/staining)
Arenite (composed primarily of Quartz and Feldspar with Iron Oxide cement)
sedimentary
Sandstone
Arenite (primarily SiO2)
sedimentary
Shale fragment
Shale (Laminated Mudstone)
sedimentary
Sandstone (Pebble)
Sandstone
sedimentary
Limestone
Sedimentary Calcium Carbonate (CaCO3)
sedimentary
Sandstone (Red / Iron-stained)
Sandstone (composed predominantly of SiO2 with Fe2O3 cement)
sedimentary
Quartzite Conglomerate
Conglomerate (SiO2 rich)
sedimentary
Shale with Iron Staining
Fissile Argillaceous Sedimentary Rock
sedimentary
Sandstone (Pet Rock)
Clastic sedimentary rock (primarily SiO2)
sedimentary
Druzy Quartz on Sandstone
Silicon Dioxide (SiO2) on Sedimentary Host Rock
mineral
Sandstone (lithic wake or graywacke)
Clastic sedimentary rock (primarily quartz and lithic fragments)
sedimentary
Quartz Druzy
Silicon Dioxide (SiO2)
mineral
Sandstone (likely Quartzose type)
Clastic sedimentary rock (primarily SiO2)
sedimentary
Sandstone (with Iron Staining)
Clastic Sedimentary Rock (SiO2 with Fe2O3/FeO oxides)
sedimentary
Sandstone
Sandstone (Siliciclastic Sedimentary Rock)
sedimentary
Shale
Mudstone (composed primarily of clay minerals like kaolinite, illite, and smectite, with quartz and calcite)
sedimentary
Sandstone
Arenite (primarily SiO2)
sedimentary
Sandstone (Pebble)
Arenite (SiO2 based)
sedimentary
Sandstone
Clastic sedimentary rock (primarily SiO2)
sedimentary
Quartzite Cobble
Quartzite (composed primarily of SiO2)
metamorphic
Sandstone
Quartz Arenite / Clastic Sedimentary Rock
sedimentary
Sandstone
Arenite (primarily SiO2)
sedimentary
Sandstone (Quartzose Sandstone)
Clastic Sedimentary Rock (primarily SiO2)
sedimentary
Sandstone
Arenite (SiO2 based)
sedimentary
Sandstone (Quartzose Sandstone)
Clastic Sedimentary Rock (primarily SiO2)
sedimentary
Sandstone (Graywacke type)
Clastic Sedimentary Rock (Lithic Sandstone)
sedimentary
Rounded granite or granitic gneiss cobble
Granite; primarily quartz, feldspar, and mica (exact identification requires a fresh surface and testing)
igneous
Fossiliferous Limestone
Fossiliferous Limestone (Sedimentary Rock)
fossil
Sandstone Pebble
Arenite (SiO2 dominated with iron oxide)
sedimentary
Sandstone (Quartz Arenite)
Clastic Sedimentary Rock - Quartz Arenite
sedimentary
Sandstone
Clastic sedimentary rock (primarily SiO2)
sedimentary
Chert (specifically Jasper)
Silicon dioxide (SiO2) with iron oxide inclusions
sedimentary
Sandstone (Ferruginous)
Sandstone (primarily SiO2 with Iron Oxide cement)
sedimentary