Sandstone
Arenite
Category
Browse anthropogenic material (man made sedimentary mimic) specimens identified by the Rock Identifier community.
Sandstone
Arenite
Green Chert (Jasper)
Silicon Dioxide (SiO2)
Limestone
Calcium Carbonate (CaCO3)
Sandstone (lithic wacke)
Arenite / Lithic Wacke (mostly SiO2 with rock fragments)
Sandstone Pebble
Arenite (primarily SiO2)
Sandstone (Ferruginous)
Arenite with Iron Oxide matrix
Quartz (likely) or a Quartzite Pebble
Silicon dioxide (SiO2) for quartz. If it's quartzite, it's a metamorphic rock primarily composed of quartz.
Olivine in Basalt matrix
Peridotite (Mg, Fe)2SiO4
Sandstone (Ferruginous)
Arenite (primarily SiO2 with Iron Oxide staining)
Coarse Sandstone
Arenite (SiO2 based)
Granular Sandstone
Arenite (variable composition, primarily SiO2)
Sandstone (likely Iron-rich or Arkosic)
Arenite (SiO2 with FeO(OH) or Fe2O3 staining)
Quartz (Small fragments)
Silicon Dioxide (SiO2)
Ferruginous Sandstone (Red Sandstone)
Arenite with Hematite/Limonite cement
Rose Quartz with Schist Matrix
Silicon Dioxide (SiO2) with Mica-Schist
Limestone (specifically Tufa or Travertine)
Calcium Carbonate (CaCO3)
Granite
Phaneritic plutonic rock (Quartz + Feldspar + Mica)
Limestone (Fossiliferous)
Calcium Carbonate (CaCO3)
Sandstone (likely Calcareous or Micaceous)
Clastic sedimentary rock (primarily Quartz with Cementing Agents)
Limestone
Calcium Carbonate (CaCO3)
Kambaba Jasper
Stromatolite / Fossilized Algae (Rhyolitic structure)
Sandstone (with Limonite staining)
Arenite (primarily SiO2 with FeO(OH)·nH2O)
Sandstone (likely Quartzose type)
Clastic sedimentary rock (primarily SiO2)
Sandstone (Ferruginous)
Clastic Sedimentary Rock (primarily SiO2 with Fe2O3 staining)
Sandstone (Pebble/Cobble)
Arenite (primarily SiO2)
Sandstone
Arenite (primarily SiO2)
Sandstone (Quartzose)
Arenite (predominantly SiO2)
Sandstone (Quartzose)
Arenite (primarily SiO2)
Crushed Limestone
Sedimentary Calcium Carbonate (CaCO3)
Limestone
Calcium Carbonate (CaCO3)
Sandstone
Clastic Sedimentary Rock (composed mostly of SiO2)
Sandstone (Quartzose)
Arenite (primarily SiO2)
Sandstone
Arenite (primarily SiO2)
Limestone
Calcium carbonate (CaCO3)
Limestone (River Pebble)
Sedimentary Calcium Carbonate (CaCO3)
Sandstone
Arenite (primarily SiO2)
Sandstone (Quartzose Sandstone)
Arenite (primarily SiO2)
Sandstone
Clastic sedimentary rock (primarily SiO2)
Feldspar
KAlSi3O8 - NaAlSi3O8 - CaAl2Si2O8
Sandstone (Quartzose)
Arenite (primarily SiO2)
Sandstone (Ferruginous)
Arenite with Iron-Oxide Cement
Sandstone (Ferruginous)
Arenite (Fe-rich)