Banded Chert
Silicon Dioxide (SiO2)
Category
Browse sedimentary specimens identified by the Rock Identifier community.
Banded Chert
Silicon Dioxide (SiO2)
Sandstone
Arenite (primarily SiO2)
Fossiliferous Limestone
Calcium Carbonate (CaCO3) with fossil inclusions
Sandstone (Quartzose)
Arenite (primarily SiO2)
Limestone
Calcium carbonate (CaCO3)
Sandstone
Arenite (SiO2 primarily)
Sandstone (likely Red/Brown Sandstone)
Arenite (SiO2 based)
Sandstone
Arenite (primarily SiO2 - Silicon Dioxide)
Sandstone
Arenite (composed primarily of SiO2)
Sandstone
Sandstone (Silicon Dioxide, SiO2)
Sandstone (with Lichen)
Arenite (composed primarily of SiO2)
Sandstone
Arenite
Limestone with Chert Nodules
Sedimentary Calcium Carbonate (CaCO3) with Microcrystalline Silica (SiO2) inclusions
Sandstone
Arenite (typically composed of SiO2)
Sandstone (Ferruginous)
Arenite (primarily SiO2 with Iron Oxide staining)
Limestone
Calcium Carbonate (CaCO3)
Banded Chert (River Pebble)
Microcrystalline Quartz (SiO2)
Quartz / Limestone Gravel
SiO2 (Silicon Dioxide) and CaCO3 (Calcium Carbonate)
Limestone
Calcium Carbonate (CaCO3)
Septarian Nodule
Septarian Concretion (CaCO3, CaMg(CO3)2, SiO2)
Chert (Iron-Stained)
Chert (Silicon Dioxide, SiO2)
Sandstone (Quartz Arenite)
Sandstone (SiO2 with possible mineral cements)
Sandstone
Arenite (SiO2 based)
Sandstone (Quartzose)
Arenite (predominantly SiO2)
Sandstone
Arenite (primarily SiO2)
Sandstone
Arenite (primarily SiO2)
Dalmatian Stone
Peralkaline rhyolite
Sandstone (Quartzose)
Arenite (SiO2 based)
Limestone
Calcium Carbonate (CaCO3)
Ferruginous Siltstone or Mudstone
Ferruginous Siltstone / Goethitic Sandstone
Limestone (specifically Iron-stained or Argillaceous Limestone)
Calcium Carbonate (CaCO3) with Iron Oxide (Fe2O3) impurities
Limestone
Calcium Carbonate (CaCO3)
River Rock (River Cobbles)
Fluvial Conglomerate Clasts (primarily composed of various minerals such as Quartz, SiO2)
Limestone
Calcium Carbonate (CaCO3)
Sandstone
Arenite (primarily SiO2 - Silicon Dioxide)
Ferruginous Sandstone (with ripple marks)
Arenite with Iron-Oxide (Fe2O3) cement
Chert (Jasper variety)
Microcrystalline Quartz (SiO2)
Sandstone (with Iron Staining)
Clastic Sedimentary Rock (primarily SiO2 with FeO(OH) impurities)
Sandstone
Arenite (Secondary classification based on grain size)
Limestone
Calcium Carbonate (CaCO3)
Banded Chert
Silicon Dioxide (SiO2)
Limestone
Limestone (Calcium Carbonate, CaCO3)