Sandstone
Arenite (SiO2 based with various mineral cements)
Category
Browse man made composite (lithified equivalent of sedimentary) specimens identified by the Rock Identifier community.
Sandstone
Arenite (SiO2 based with various mineral cements)
Limestone
Calcium Carbonate (CaCO3)
Sandstone
Arenite
Sandstone
Arenite (primarily SiO2)
Limestone
CaCO3 (Mainly Calcite or Aragonite)
Limestone (specifically Dolomitic/Crystalline Limestone)
Sedimentary Carbonate Rock (CaCO3 / CaMg(CO3)2)
Shale
Argillite / Shaly Mudstone
Limestone (Micrite/Chalky variety)
Calcium Carbonate (CaCO3)
Granite (likely biotite granite)
Coarse-grained felsic plutonic rock: quartz + feldspar + biotite; approximate composition SiO₂-rich
Sandstone
Arenite (SiO2 primarily)
Sandstone
Sandstone (clastic sedimentary rock, composed predominantly of sand-sized minerals or rock fragments)
Specular Hematite (Iron Ore)
Iron(III) oxide (Fe2O3)
Limestone
Calcium Carbonate (CaCO3)
Sandstone
Arenite
Limestone (River Pebble)
Calcite (Calcium Carbonate) - CaCO3
Pebble (likely Quartz or Chert)
SiO₂ (Silicon Dioxide) - referring to the likely main mineral composition, Quartz. If it's chert, the scientific name remains SiO₂ with a microcrystalline structure.
Shale
Shale (fine-grained clastic sedimentary rock)
Sandstone (Iron-stained)
Arenite (primarily Quartz, SiO2)
Sandstone (Ferruginous)
Arenite (Fe2O3 rich)
Limestone
Calcium Carbonate (CaCO3)
Chert (or potentially massive Quartz/Quartzite)
SiO2 (Silicon Dioxide)
Sandstone (Quartzose Sandstone)
Arenite (SiO2 principal component)
Sandstone
Arenite (SiO2 based)
Sandstone (Quartzose)
Arenite (SiO2 based)
Limestone
Sedimentary Calcium Carbonate (CaCO3)
Sandstone
Arenite
Limestone
Calcium Carbonate (CaCO3)
Quartz-bearing granite or granitic pegmatite
Felsic intrusive rock, chiefly quartz (SiO₂), feldspar, and minor mica
Shale (Ferruginous)
Laminated Mudrock (Siliciclastic Sedimentary Rock)
Sandstone (likely Quartzose Sandstone)
Arenite (primarily SiO2)
Sandstone (likely Fossiliferous)
Arenite / Sedimentum arenaceum
Sandstone (Quartz Sandstone)
Arenite (primarily SiO2)
Sandstone (Ferruginous)
Ferruginous Sandstone (SiO2 with iron oxide cement)
Sandstone or Limestone
Arenite or Calcareous Sedimentary Rock
Sandstone
Arenite (SiO2 based)
Sandstone
Arenite (SiO2 based)
Sandstone
Arenite
Sandstone
Arenite (composed primarily of SiO2)
Shale with Iron Staining
Fissile Mudrock (Sedimentary Rock)
Sandstone
Arenite (primarily SiO2 with various cementing agents)
River Sandstone (Lithic Arenite)
Lithic Sandstone (SiO2 dominated with lithic fragments)
Sandstone/Quartzite
Sedimentary Rock (composed mainly of SiO2)