Ferruginous Sandstone
Clastic sedimentary rock (SiO2 with Fe2O3/FeO(OH) cement)
Category
Browse man made rock (sedimentary analogue) specimens identified by the Rock Identifier community.
Ferruginous Sandstone
Clastic sedimentary rock (SiO2 with Fe2O3/FeO(OH) cement)
Brachiopod Fossil in Limestone
Phylum Brachiopoda embedded in sedimentary rock
Sandstone (lithic/arkosic)
Clastic sedimentary rock (primarily SiO2)
Greywacke (River Pebble with Quartz Veins)
Greywacke (Indurated Sandstone); Veins: SiO2 (Quartz)
Sandstone
Arenite (SiO2 principal)
Botryoidal Chalcedony (Desert Rose / Agate)
Silicon Dioxide (SiO₂)
Ironstone / Weathered Hematite
Iron oxide-rich sedimentary rock with Goethite/Hematite
Banded Sandstone (River Pebble)
Clastic Sedimentary Rock (SiO2 with impurities)
Sandstone
Arenite (SiO2 principal component)
Sandstone
Quartz Arenite / Clastic Sedimentary Rock
Crushed Limestone
Sedimentary Calcite/Dolomite Rock (CaCO3)
Sandstone (with Arkose characteristics)
Clastic sedimentary rock (SiO2 with KAlSi3O8)
Quartz Geode or Druzy Quartz on Matrix
Silicon Dioxide (SiO2)
Limestone
Calcium Carbonate (CaCO3)
Limonite-coated Shale
Ferruginous Siliciclastic Shale
Sandstone
Arenite (primarily Quartz Sandstone with Iron Oxide)
Sandstone (Quartzose)
Arenite (SiO2 principal)
Milky Quartz
Silicon Dioxide (SiO2)
Limestone
Sedimentary Calcium Carbonate (CaCO3)
Turquoise
Hydrated phosphate of copper and aluminium (CuAl6(PO4)4(OH)8·4H2O)
Quartz
Silicon Dioxide (SiO2)
Quartz
Silicon Dioxide (SiO2)
Dalmatian Stone
Dalmatian Jasper (Aplitic Rock)
Banded Gneiss
Gneiss (Metamorphic Rock)
Gneiss
Gneissic Metamorphic Rock
Sandstone Pebble
Arenite (primarily SiO2)
Limestone
Calcium Carbonate (CaCO3)
Limestone
Calcium Carbonate (primarily CaCO3 as Calcite or Aragonite)
Sandstone
Clastic Sedimentary Rock (composed mostly of quartz, SiO2)
Yellow Chert (Yellow Jasper)
Silicon dioxide (SiO2)
Chert Breccia (Yellow Jasper)
Silicon Dioxide (SiO2) - Brecciated Chert
Bauxite / Iron-rich Laterite
Laterite (principally Al(OH)3, Fe2O3, and SiO2)
Druzy Quartz on Sandstone
Silicon Dioxide (SiO2) with Quartz crystals
Chalcedony in Matrix (likely Agatized Coral or Chert)
Silicon Dioxide (SiO2)
Banded Sandstone
Arenite with iron oxide banding
Limestone with Lichen
Sedimentary Calcium Carbonate (CaCO3)
Agate / Chalcedony Geode
Silicon Dioxide (SiO2)
Sandstone (Ferruginous)
Clastic sedimentary rock (primarily SiO2 with Fe2O3 cement)
Quartz (Jasper / Chert)
Silicon Dioxide (SiO2)
Chert / Flint
Microcrystalline quartz (SiO2)
Conglomerate
Polymictic Conglomerate
Chert (Brown Variety)
Microcrystalline or Cryptocrystalline Quartz (SiO2)