Limestone (Weathered)
Calcium Carbonate (CaCO3)
Category
Browse sedimentary (primary) with artificial modification specimens identified by the Rock Identifier community.
Limestone (Weathered)
Calcium Carbonate (CaCO3)
Calcite
Calcium Carbonate (CaCO3)
Limonite (Iron Ore)
Limonite (FeO(OH)·nH2O)
Chert (Jasper/Flint variety)
Silicon Dioxide (SiO2)
Limestone
Sedimentary Calcite (CaCO3)
Shale
Fissile Mudstone (primarily composed of phyllosilicate minerals like kaolinite, montmorillonite, and illite)
Chert (Flint) with Glauconite
Microcrystalline Quartz (SiO2)
Chert (Jasper/Flint variety)
Microcrystalline Quartz (SiO2)
Quartz
Silicon dioxide (SiO2)
Coal
Bituminous or Anthracite coal (carbon-rich sedimentary rock)
Yellow Calcite
Calcium Carbonate (CaCO3)
Orange Calcite
Calcium Carbonate (CaCO3)
Concrete
Anthropogenic Conglomerate
Blue Celestite (with Galena)
Strontium sulfate (SrSO4) and Lead sulfide (PbS)
Chert (Jasper/Chalcedony)
Microcrystalline Quartz (SiO2)
Chert / Flint
Microcrystalline or cryptocrystalline quartz (SiO2)
Chert or Jasper
Microcrystalline Quartz (SiO2)
Banded Iron Formation (Jasper-grade)
Banded Iron Formation (BIF) containing Hematite/Magnetite and Chert (SiO2)
Gray Limestone
Calcium Carbonate (CaCO3)
Asphalt Concrete
Bituminous conglomerate
Asphalt / Road Aggregate
Bituminous Conglomerate (synthetic)
Asphalt Concrete (Bituminous Conglomerate)
Anthropogenic Bituminous Conglomerate
Chert (Flint variety)
Silicon Dioxide (SiO2)
Hematite or Goethite-rich Ironstone
Ironstone (Oxidized Iron Ore)
Shale
Fissile Siliciclastic Sedimentary Rock
Sandstone
Arenite (SiO2, often with CaCO3 or Fe2O3 cement)
Chert (Flint)
Microcrystalline or cryptocrystalline Quartz (SiO2)
Sandstone
Arenite (primarily SiO2)
Limestone with Calcite Crust
Sedimentary Calcium Carbonate (CaCO3)
Limestone
Calcium Carbonate (CaCO3)
Limestone (Travertine/Tufa variant)
Calcium Carbonate (CaCO3)
Limestone (specifically Travertine or Tufa)
Calcium Carbonate (CaCO3)
Limestone
Sedimentary Calcium Carbonate (CaCO3)
Limestone
Calcium Carbonate (CaCO3)
Limestone
Calcium Carbonate (CaCO3)
Limestone
Calcium Carbonate (CaCO3)
Crushed Limestone
Calcite-rich Sedimentary Rock (CaCO3)
Sandstone (Ferruginous)
Arenite with Iron Oxides
Limestone
Calcium Carbonate (CaCO3)
Limestone (specifically Iron-stained or Argillaceous Limestone)
Calcium Carbonate (CaCO3) with Iron Oxide (Fe2O3) impurities
Aragonite Star Cluster
Aragonite (Calcium Carbonate, CaCO3)
Chert (often called Jasper or Flint in this color variety)
Silicon Dioxide (SiO2)