Chert (Flint)
Silicon Dioxide (SiO2)
Category
Browse sedimentary (base), then artificial specimens identified by the Rock Identifier community.
Chert (Flint)
Silicon Dioxide (SiO2)
Limestone Pebble
Sedimentary Rock (Calcite, CaCO3)
Sandstone (Greywacke)
Arenite / Greywacke Sandstone
Jasper River Stone
Silicon Dioxide (SiO2) with iron oxide inclusions
Sandstone
Arenite
Sandstone (with potential trace fossils)
Clastic sedimentary rock (primarily SiO2)
Quartzwacke / Impure Sandstone
Arenite with minor lithic fragments (Silicon Dioxide matrix)
Gneiss
Gneiss
Sandstone
Arenite (SiO2 based)
Sandstone
Arenite (SiO2 based)
Sandstone (with Possible Iron Staining/Crust)
Arenite (SiO2 based)
Sandstone (Quartz-rich)
Arenite (SiO2 based)
Sandstone (Pebble)
Arenite (SiO2 based)
Yellow Apatite
Fluorapatite (Ca5(PO4)3(F,Cl,OH))
Sandstone (Ferruginous)
Arenite (primarily SiO2 with Fe2O3 staining)
Limestone
Calcium Carbonate (CaCO3)
Graywacke
Lithic Sandstone (Graywacke)
Limestone
Calcium Carbonate (CaCO3)
Crushed Stone / Gravel
Aggregatus saxum (variable mineral composition)
Limestone
Calcium Carbonate (CaCO3)
Coquina (Fossiliferous Limestone)
Biogenic Limestone (Calcium Carbonate, CaCO3)
Gneiss (River Cobble)
Gneiss
Kambaba Jasper
Stromatolite Jasper (Microcrystalline Quartz with Cyanobacteria fossile)
Quartz (Chert/Chalcedony variety)
Silicon Dioxide (SiO2)
Sandstone
Arenite (SiO2 based)
Shale
Shale (Consolidated fine-grained clay/silt)
Sandstone (likely Greywacke variant)
Arenite
Sandstone (Graywacke)
Arenite / Graywacke (SiO2 with lithic fragments)
Red Sandstone
Arenite (SiO2 based with Fe2O3)
Jasper (specifically Green Jasper/Chert)
Jasper (Silicon Dioxide, SiO2)
Shark Tooth Fossil
Chondrichthyes (shark) tooth
River Pebble (likely Quartzite or Chert)
Sedimentary Clast (Silicon Dioxide dominant)
Fossiliferous Limestone
Biogenic Sedimentary Rock (primarily CaCO3)
Sandstone
Clastic sedimentary rock (primarily SiO2)
Sandstone
Arenite (SiO2 based)
Sandstone
Arenite (SiO2 based)
Sandstone Pebble
Arenite (SiO2 based)
Sandstone
Arenite (SiO2 based)
Sandstone (Sedimentary Rock)
Arenite (SiO2 based)
Sandstone
Arenite (SiO2 based)
Sandstone Pebble
Arenite (SiO2 based)
Sandstone
Arenite (SiO2 based)