Sandstone (Red Arkose)
Sandstone (Arkose variant, primarily SiO2 with KAlSi3O8)
Category
Browse man made composite (lithified equivalent of sedimentary) specimens identified by the Rock Identifier community.
Sandstone (Red Arkose)
Sandstone (Arkose variant, primarily SiO2 with KAlSi3O8)
Sandstone (Ferruginous)
Arenite (Fe-rich)
Fossiliferous Limestone
Biogenic Limestone (Calcium Carbonate, CaCO3)
Pyrite
Iron Sulfide (FeS2)
Pink Granite (Fragment)
Pink Granite (dominated by Potassium Feldspar: KAlSi3O8)
Granite
Granite (Felsic Plutonic Rock)
Fossiliferous Limestone (with Crinoids/Coral)
Fossiliferous Limestone (CaCO3)
Jasper and Chert Conglomerate
Ferruginous Microcrystalline Quartz (SiO2)
Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
Jasper
Silicon Dioxide (SiO2) with impurities
Yellow Jasper
Silicon Dioxide (SiO2) with iron oxide impurities
Pyrite
Iron Disulfide (FeS2)
Orange Calcite
Calcium Carbonate (CaCO3)
Limestone (Brecciated/Recrystallized)
Calcium Carbonate (CaCO3)
White Quartz (Milky Quartz)
Silicon Dioxide (SiO2)
Crazy Lace Agate
Silicon Dioxide (SiO2) with iron and aluminum inclusions
Pyrite (on Quartz matrix)
Iron Sulfide (FeS2)
Iron Meteorite
Iron-nickel alloy (e.g., Kamacite, Taenite)
Limestone
Sedimentary Calcium Carbonate (CaCO3)
Petrified Wood
Silicified Wood (SiO2)
Sandstone (Quartzite-rich)
Clastic sedimentary rock (SiO2 primary)
Turquoise
Hydrated phosphate of copper and aluminium (CuAl6(PO4)4(OH)8·4H2O)
Dendritic Jasper (Bumblebee like Agate)
Silicon Dioxide with inclusions (SiO2)
Picture Jasper
Silicon Dioxide (SiO2) with iron oxide and clay impurities
Siderite Concretion (Nodule)
Iron Carbonate (FeCO3) Concretion
Quartz (Clear Quartz/Rock Crystal)
Silicon Dioxide (SiO2)
Red Jasper (nodule)
Silicon Dioxide (SiO2) with Iron Oxide inclusions
Red Jasper
Silicon Dioxide (SiO2) with Hematite impurities
Jasper
Jasper (Silicate mineral, SiO2)
Banded Sandstone (Liesegang Rings)
Sedimentary sandstone with Iron oxide precipitates
Botryoidal Agate
Chalcedony (Silicon Dioxide, SiO2)
Petrified Wood
Silicified wood (Quartz, Chalcedony, or Opal)
Chert (Jasper)
Silicon Dioxide (SiO2)
Banded Chert
Microcrystalline Quartz (SiO2)
Red Sandstone
Arenite (Ferruginous Sandstone)
Puddingstone (Gowganda Tillite/Lorrain Quartzite)
Jasper Conglomerate
Ironstone Concretion (Limonite/Goethite)
Ferruginous Sandstone or Limonite (FeO(OH)·nH2O)
Chert / Flint
Microcrystalline Quartz (SiO2)
Sandstone
Arenite (primarily SiO2)
Red Quartzite
Quartzite (SiO2)
Travertine (Ceramic Tile)
Terrestrial Sedimentary Rock / Calcium Carbonate (CaCO3)
Quartz (Clear Quartz/Rock Crystal)
Silicon Dioxide (SiO2)