Sandstone
Arenite (primarily SiO2 - Silicon Dioxide)
Category
Browse sedimentary (imitation) specimens identified by the Rock Identifier community.
Sandstone
Arenite (primarily SiO2 - Silicon Dioxide)
Sandstone (with banding)
Arenite (primarily SiO2)
River Quartzite Siltstone
Quartz-rich Meta-siltstone (SiO2 dominated)
Sandstone
Clastic Sedimentary Rock (composed primarily of Quartz, SiO2)
Sandstone
Arenite
Limestone (specifically Chalky Limestone)
Calcium Carbonate (CaCO3 / Calcite)
Sandstone (Quartz-rich)
Sandstone (SiO2 dominated)
Sandstone (Weathered Pebble)
Arenite (primarily SiO2)
Sandstone
Arenite (composed primarily of Quartz, SiO2)
Limonite-stained Chert/Jasper
Microcrystalline Quartz (SiO2) with Iron Oxides (FeO(OH)·nH2O)
Limestone
Calcium Carbonate (CaCO3)
Sandstone
Arenite (SiO2 based)
Sandstone (Stream-rounded)
Arenite (SiO2 based)
Dolomite or Limestone (Carbonate Rock)
CaMg(CO3)2 (Dolomite) or CaCO3 (Limestone / Calcite)
Sandstone
Arenite (composed primarily of SiO2)
Sandstone (Quartzose Sandstone)
Arenite (primarily SiO2)
Limestone (specifically Crushed Limestone/Calcictic)
Calcium Carbonate (CaCO3)
Sandstone (Quartzose)
Arenite (primarily SiO2)
Sandstone (specifically Red Sandstone)
Arenite (primarily Quartz, SiO2)
Dalmatian Stone (Dalmatian Jasper)
Dalmatian Stone (A variety of Perthite / Aplite)
Sandstone Cobble
Arenite (Secondary classification based on grain size)
Sandstone (Quartzose)
Arenite (SiO2 based)
Shale
Shale (comprised mostly of clay minerals and quartz)
Sandstone
Arenite (SiO2-rich)
Limestone
Calcium Carbonate (CaCO3)
Shale
Fissile Mudstone (Shale)
Sandstone (Ferruginous)
Arenite (with iron oxide cement, Fe2O3)
Limestone (specifically Fossiliferous Limestone)
Calcium Carbonate (CaCO3)
Limestone
Calcium Carbonate (CaCO3)
Limestone (Fossiliferous)
Calcium Carbonate (CaCO3)
Limestone
Calcium Carbonate (CaCO3)
Shale
Shale (Sedimentary rock composed of mud/clay minerals)
Sandstone
Arenite (primarily SiO2)
Sandstone
Arenite (composed primarily of SiO2)
Sandstone with Iron Oxide (Limonite/Hematite)
Ferruginous Sandstone (SiO2 with FeO(OH)·nH2O)
Sandstone
Arenite (primarily SiO2)
Sandstone (Ferruginous)
Arenite with Iron-Oxide Cement
Dalmatian Stone (often misnamed Dalmatian Jasper)
Aplite (with hornblende/arfvedsonite inclusions)
Sandstone (with potential iron-oxide weathering)
Arenite (SiO2 based)
Sandstone (Ferruginous)
Arenite with Iron Oxide cement (SiO2 + Fe2O3)
Sandstone
Arenite (SiO2 based with quartz, feldspar, or lithic fragments)
Stromatolite
Laminated biogenic sedimentary structure (formed by Cyanobacteria)