Sandstone
Arenite (SiO2 based)
sedimentary
Category
Sedimentary (Base), Then Artificial
Browse sedimentary (base), then artificial specimens identified by the Rock Identifier community.
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Sandstone (Quartzose)
Arenite (SiO2 based)
sedimentary
Sandstone
Arenite (SiO2 based)
sedimentary
Sandstone
Arenite (SiO2 based)
sedimentary
Wishing Stone (Basalt/Greywacke with Quartz Vein)
Basalt or Siltstone with SiO2 (Quartz) hydrothermal intrusion
igneous/sedimentary
Chert (specifically Yellow Jasper variety)
Silicon Dioxide (SiO2)
sedimentary
Leopard Skin Jasper
Rhyolite (Silicon Dioxide with impurities), SiO2
igneous
Sandstone
Arenite (SiO2 based)
sedimentary
Sandstone
Arenite (SiO2 based)
sedimentary
Sandstone (Water-worn Cobble)
Arenite (SiO2 based)
sedimentary
Sandstone (likely Quartz Sandstone)
Arenite (SiO2 based)
sedimentary
Chalcedony (Grey/White Agate)
Silicon Dioxide (SiO₂)
mineral
Sandstone (Pebble)
Arenite (SiO2 based)
sedimentary
Limestone
Calcareous sedimentary rock (CaCO3)
sedimentary
Bloodstone
Chalcedony (Variety: Bloodstone / Heliotrope), SiO2
mineral
Limestone
Calcium Carbonate (CaCO3)
sedimentary
Conglomerate
Conglomeratic Sandstone
sedimentary
Crushed Stone / Gravel
Aggregate (mixed lithology)
sedimentary
Sandstone (lithic/greywacke variety)
Arenite (composed primarily of SiO2 with various lithic fragments)
sedimentary
Gravel or Pebble
Clastic Sedimentary Grain (typically composed of Quartz or Silicate minerals)
sedimentary
Coquina
Bioclastic Limestone
sedimentary
River Stone (Greywacke)
Greywacke (Lithic Sandstone)
sedimentary
Coquina
Bioclastic Limestone
sedimentary
Sandstone
Arenite (SiO2 principal)
sedimentary
Fossiliferous Limestone (Shell Fragment)
Biogenic Limestone (Calcium Carbonate / CaCO3)
sedimentary
Conglomerate
Conglomerate (clastic sedimentary rock)
sedimentary
Gravel / Limestone Fragment
Calcium Carbonate (CaCO3) / Fine-grained Sedimentary Rock
sedimentary
Coquina or Fossilized Shell Aggregate
Calcareous bioclastic sedimentary rock (CaCO3)
sedimentary
Conglomerate
Clastic Sedimentary Rock
sedimentary
Sandstone (Ferruginous)
Arenite with Iron Oxide cement
sedimentary
Puddingstone (specifically Gowganda Tillite or St. Joseph Island Puddingstone)
Jasper Conglomerate
sedimentary
Fossil Shark Tooth
Carcharodon sp. (likely Otodus or similar Lamniformes order)
sedimentary
Fossil Shark Tooth
Chondrichthyes (class); likely Lamniformes (order) fossilized in Apatite/Hydroxyapatite
fossil
Bloodstone
Chalcedony variety Heliotrope (SiO2 with inclusions)
mineral
Conglomerate
Clastic Sedimentary Rock (Conglomerate)
sedimentary
Banded Limestone
Calcareous sedimentary rock (CaCO3)
sedimentary
Sandstone (Ferruginous)
Arenite with Iron Oxide cement
sedimentary
Chert (and associated Sedimentary rocks)
Microcrystalline Silica (SiO2)
sedimentary
Sandstone
Arenite (SiO2 based)
sedimentary
Sandstone
Arenite (SiO2 based)
sedimentary
Druzy Quartz on Limestone
Silicon Dioxide (SiO2)
mineral
Breccia
Clastic Breccia
sedimentary