Sandstone (Quartzite-rich)
Clastic Sedimentary Rock (primarily SiO2)
Category
Browse sedimentary (man made conglomerate) specimens identified by the Rock Identifier community.
Sandstone (Quartzite-rich)
Clastic Sedimentary Rock (primarily SiO2)
Red Sandstone
Quartz Arenite (iron-stained)
Sandstone
Arenite (primarily SiO2)
Sandstone
Clastic sedimentary rock (primarily SiO2)
Sandstone / Weathered Quartzite
Sandstone (Quartz Arenite)
Sandstone (Quartzose Sandstone)
Arenite (primarily SiO2)
Sandstone
Arenite
Ironstone Pebble
Sedimentary Ironstone (Hematite/Limonite-bearing)
Limestone
Sedimentary Calcium Carbonate (CaCO3)
Coquina / Shelly Sandstone
Calcareous Sandstone / Coquina
Fossiliferous Sandstone (with Quartz patch)
Sedimentary Sandstone with Silicified Shell Fragments
Moqui Marble (Concretion)
Iron Oxide Concretion (Hematite-cemented Sandstone)
Sandstone (with ripple marks)
Arenite / Quartz Sandstone
Jasper
SiO2
Limestone
Calcium Carbonate (CaCO3)
Sandstone (likely Fossiliferous)
Arenite / Sedimentum arenaceum
Sandstone (Pebble)
Sandstone
Sandstone (with Iron Oxide)
Quartz Arenite / Ferruginous Sandstone (SiO2 with Fe2O3)
Limestone
Calcium Carbonate (CaCO3)
Limestone (with potential fossil inclusions)
Calcium Carbonate (CaCO3)
Limestone (Grey and White specimens)
Calcium Carbonate (CaCO3)
Sandstone
Arenite (Sedimentary rock)
Banded sandstone pebble
Lithic or quartz-rich sandstone; exact composition requires testing
Quartz Crystal Cluster / Quartzite
Silicon Dioxide (SiO2)
Bivalve Seashell Fossil
Class Bivalvia
Limestone
Calcium Carbonate (CaCO3)
Limestone
Calcium Carbonate (CaCO3)
Limestone
Calcium Carbonate (CaCO3)
Sandstone (Water-worn Pebble)
Clastic Sedimentary Rock (primarily Quartz and Feldspar)
Sandstone (Quartzite-rich)
Clastic sedimentary rock (primarily SiO2)
Quartz Geode in Sedimentary Host Rock
Silicon Dioxide (SiO2) in Carbonate Matrix
Sandstone (Quartzose)
Arenite (composed primarily of SiO2)
Quartz
Silicon Dioxide (SiO2)
Red Jasper and Hematite
Silicon Dioxide (SiO2) and Iron Oxide (Fe2O3)
Brown Jasper (Tumbled)
Silicon Dioxide (SiO2) with iron oxide inclusions
Red Jasper or Ironstone concretion
SiO2 or Fe2O3
Aragonite Star Cluster (Cross-section)
Aragonite (Calcium Carbonate, CaCO3)
Blue Calcite
Calcium Carbonate (CaCO3)
Pyrite
Iron Sulfide (FeS2)
Magnetite (Iron Ore)
Iron(II,III) oxide (Fe3O4)
Fluorite, Turquoise, and Calcite set
Calcium Fluoride (CaF2), Hydrous Phosphate of Copper and Aluminum (CuAl6(PO4)4(OH)8·4H2O), Calcium Carbonate (CaCO3)
Red Jasper (Polished)
Jasper (Iron-rich Microcrystalline Quartz, SiO2)