Riverstone Quartzite
Quartzite (primarily SiO2)
Category
Browse sedimentary (processed mineral product) specimens identified by the Rock Identifier community.
Riverstone Quartzite
Quartzite (primarily SiO2)
Green Chalcedony
Silicon Dioxide (SiO2) with trace minerals
Sandstone
Arenite (primarily SiO2)
Conglomerate (Puddingstone)
Conglomerate (specifically, clastic sedimentary rock)
Sandstone
Arenite (SiO2 based)
Bauxite (Concretionary)
Bauxite (Al(OH)3, AlO(OH))
Blue Chalcedony
Chalcedony (cryptocrystalline Silicon Dioxide, SiO2)
Blue Chalcedony
Chalcedony (Silicon Dioxide, SiO2)
Limonite with Iron Inclusions
Limonite (Hydrated Iron Oxide, FeO(OH)·nH2O)
Sandstone (likely Calcareous or Quartz-rich)
Arenite (SiO2 based typically)
Chert (containing Iron Oxide)
Microcrystalline Quartz (SiO2)
Sandstone
Arenite (primarily SiO2)
Sandstone
Arenite (SiO2 based)
Shale creek bed
Shale (fine-grained clastic sedimentary rock)
Sandstone
Arenite (composed primarily of SiO2)
Sandstone (Quartz-rich)
Arenite (composed primarily of SiO2)
Limonite Concretion (Ironstone)
Limonite / Goethite (FeO(OH)·nH2O)
Sandstone (Ferruginous)
Clastic Sedimentary Rock (Litharenite)
Turritella Agate (Elimia Agate)
Silicified Elimia tenera (formerly misidentified as Turritella)
Quartz Geode
Crystalline Silicon Dioxide (SiO2) within a nodule
Limonite Concretion
Goethite-rich Concretion (FeO(OH))
Limonite (Iron Ore)
Limonite (FeO(OH)·nH2O)
Red Sandstone
Arenite (Fe2O3 rich)
Tiger's Eye
Pseudomorph of Quartz after Crocidolite (SiO2 with Iron Oxide inclusions)
Sandstone
Arenite (SiO2 based with various mineral cements)
Rhodonite
Manganese Silicate (Mn,Fe,Mg,Ca)SiO3
Pyrite
Iron Disulfide (FeS2)
Pyrite (Fool's Gold)
Iron Sulfide (FeS2)
Pyrite
Iron Sulfide (FeS2)
Yellow Calcite
Calcium Carbonate (CaCO3)
Blue Chalcedony
Silicon Dioxide (SiO2)
Fluorite
Calcium Fluoride (CaF2)
Selenite (Satin Spar)
Gypsum (CaSO4·2H2O)
Orange Calcite
Calcium Carbonate (CaCO3)
Rhodochrosite
Manganese carbonate (MnCO3)
Satin Spar Selenite
Calcium Sulfate Dihydrate (CaSO4·2H2O)
Sandstone (Red)
Arenite (Fe2O3 heavy)
Dalmation Stone (Dalmation Jasper)
Peralkaline rock (primarily Feldspar and Quartz with Arfvedsonite spots)
Goldstone (Synthetic Aventurescence Glass)
Cuprous Aventurescent Glass (Silicon Dioxide with Copper inclusions)
Stromatolite
Stromatolite (Cyanobacteria-formed Organo-sedimentary structure)
Sandstone with Iron Oxide (Limonite/Hematite)
Ferruginous Sandstone (SiO2 with FeO(OH)·nH2O)
Ferruginous Quartz
Silicon Dioxide (SiO2) with Iron Oxide (Fe2O3/FeO(OH)) inclusions