Limestone
Carbonate rock (CaCO3)
Category
Browse sedimentary (man made) specimens identified by the Rock Identifier community.
Limestone
Carbonate rock (CaCO3)
Sandstone (Ferruginous)
Arenite with Iron Oxide matrix
Limestone
Calcium Carbonate (CaCO3)
Limestone
Calcium carbonate (CaCO3)
Sandstone
Sandstone (SiO2-rich detrital sedimentary rock)
Quartz
Quartz (SiO₂)
Sandstone with Iron Staining
Clastic sedimentary rock (primarily SiO2 with Fe2O3)
Sandstone
Sandstone (composed mainly of SiO2)
Sandstone
Arenite (SiO2 principal component)
Sandstone (with Iron Staining)
Clastic Sedimentary Rock (primarily Quartz, SiO2)
Sandstone
Sandstone (SiO2 dominant)
Sandstone
Arenite
Sandstone Pebble
Arenite (primarily SiO2)
Limestone
Calcium Carbonate (CaCO3)
Sandstone
Arenite (SiO2 based)
Quartz Crystal Cluster / Quartzite
Silicon Dioxide (SiO2)
Quartz (likely) or a Quartzite Pebble
Silicon dioxide (SiO2) for quartz. If it's quartzite, it's a metamorphic rock primarily composed of quartz.
Gray Limestone
Calcite-rich Sedimentary Rock (CaCO3)
Limestone
Calcium Carbonate (CaCO3)
Sandstone (Beach Pebble)
Clastic sedimentary rock (primarily Quartz and Feldspar)
Limestone
Calcium Carbonate (CaCO3)
Sandstone (likely Quartzose)
Arenite (SiO2 principal mineral)
Sandstone (Ferruginous)
Arenite (SiO2 with iron oxide impurities)
Sandstone (Red/Brown Variety)
Arenite (SiO2 with iron oxide impurities)
Sandstone
Arenite
Sandstone (with Iron Oxide staining)
Arenite (primarily SiO2 with Fe2O3 staining)
Fossiliferous Limestone with Quartz Veining
Limestone (Calcium Carbonate, CaCO3)
Limestone (with Calcite Veining)
Calcium Carbonate (CaCO3)
Sandstone (Ferruginous)
Arenite (primarily SiO2 with Fe2O3 staining)
Sandstone (Ferruginous)
Arenite with Iron-Oxide Cement
Coarse Sandstone
Arenite (SiO2 based)
Sandstone (likely Iron-rich or Arkosic)
Arenite (SiO2 with FeO(OH) or Fe2O3 staining)
Sandstone (likely Graywacke or Arkose variant)
Clastic Sedimentary Rock (Lithic Sandstone)
Quartzwacke / Impure Sandstone
Arenite with minor lithic fragments (Silicon Dioxide matrix)
Ferruginous Sandstone (Red Sandstone)
Arenite with Hematite/Limonite cement
Limestone
Sedimentary Calcium Carbonate (CaCO3)
Limestone with Iron Inclusions
Calcium Carbonate (CaCO3) with Hematite/Limonite
Limestone
Calcium Carbonate (CaCO3)
Sandstone Pebble
Arenite (SiO2 complex)
Sandstone
Arenite (primarily SiO2)
Sandstone (Micaceous)
Clastic Sedimentary Rock - Micaceous Litharenite (SiO2 principal)
Shale
Shale (Fine-grained clastic sedimentary rock)