Sandstone (with minor quartz and possible clay components)
Clastic Sedimentary Rock (SiO2 dominated)
Category
Browse anthropogenic (man made material mimicking sedimentary rock) specimens identified by the Rock Identifier community.
Sandstone (with minor quartz and possible clay components)
Clastic Sedimentary Rock (SiO2 dominated)
Faceted Glass (Costume Jewelry)
Amorphous Silicon Dioxide with colorants (Glass)
Quartz (Iron-Stained)
Silicon Dioxide (SiO2)
Ferruginous Sandstone
Arenite with Iron-Oxide cement (Fe2O3 · nH2O)
Conglomerate
Conglomerate (SiO2, Al2O3, Fe2O3, CaCo3)
Limonite (Iron Ore)
Limonite (Hydrous iron(III) oxide-hydroxide mixture, primarily FeO(OH)·nH2O)
Sandstone
Arenite (composed primarily of SiO2)
Sandstone
Arenite (primarily SiO2)
Sandstone (Quartzose Sandstone)
Arenite (composed primarily of SiO2)
Sandstone
Arenite (composed primarily of SiO2)
Sandstone
Arenite (Siliclastic sedimentary rock, primarily SiO2)
Sandstone (Iron-stained)
Arenite (composed primarily of SiO2 with Fe2O3 staining)
Sandstone (Banded)
Clastic Sedimentary Rock (primarily SiO2)
Quartz Geode (likely within Limestone or Dolomite matrix)
Quartz (SiO₂)
Sandstone
Arenite (composed primarily of SiO2)
Sandstone
Arenite/Quartz Arenite
Sandstone (Fossiliferous)
Clastic Sedimentary Rock (primarily SiO2)
Sandstone (with potential fossil inclusions)
Clastic sedimentary rock (primarily SiO2)
Chert (specifically Flint or Jasper-Chert)
Silicon Dioxide (SiO2)
Chert (potentially Flint or Mudstone)
Microcrystalline Quartz (SiO2)
Sandstone with Ironstone Concretion
Arenite with Hematite/Goethite nodules (Fe2O3 / FeO(OH))
River Pebble (Quartz-rich)
Silicon Dioxide (SiO2) with various inclusions
Conglomerate
Conglomerate (clastic sedimentary rock)
Sandstone
Arenite (primarily Quartz, SiO2)
Sandstone (with potential trace fossils)
Clastic sedimentary rock (primarily SiO2)
Sandstone (Banded)
Clastic sedimentary rock (primarily SiO2)
Sandstone
Arenite (SiO2 based with mineral cement)
Sandstone (Quartzose)
Arenite (SiO2 based)
Fossil Coral (Rugose Coral Fragment)
Rugosa (extinct order of solitary and colonial corals)
Shale or Argillite
Shale (fine-grained clastic sedimentary rock) or Argillite (low-grade metamorphic rock derived from shale)
Sandstone (Pebble)
Clastic sedimentary rock (SiO2 primary)
Crushed Limestone
Calcite-rich Sedimentary Rock (CaCO3)
Limestone
Calcium Carbonate (CaCO3)
Red Jasper
Silicon dioxide (SiO2) with iron oxide (Fe2O3) inclusions
Sandstone (with Iron Staining)
Arenite (composed primarily of SiO2 with Fe2O3 staining)
Limonite (Iron Ore)
Limonite (FeO(OH)·nH2O)
Sandstone (Quartzose Sandstone)
Clastic sedimentary rock (SiO2 major component)
Sandstone Cobble
Arenite (Secondary classification based on grain size)
Coquina or Fossilized Shell Aggregate
Calcareous bioclastic sedimentary rock (CaCO3)
Calligraphy Stone
Mariam Jasper (Fossiliferous Limestone with Hematite and Iron)
Sandstone (Stream-rounded Cobble)
Arenite (composed primarily of SiO2, Silica)
Conglomerate
Conglomerate (Clastic Sedimentary Rock)