Sedimentary

Oolitic Limestone (Egg Stone)

Oolite (Chemical sedimentary rock, primarily CaCO3)

Fossilized Shell in Limestone

Bivalve fossil (CaCO3) in Carbonate Sedimentary Rock

Sandstone (likely Arkosic or Lithic Sandstone)

Clastic Sedimentary Rock (SiO2 with assorted minerals)

Sandstone (with Iron Staining)

Clastic sedimentary rock (SiO2 with Fe2O3 impurities)

Sandstone

Clastic sedimentary rock (Quartz arenite/Arkose)

Picture Jasper

Silicified sedimentary or volcanic rock (primarily SiO2)

Stromatolite

Biogenic Sedimentary Rock (composed predominantly of CaCO3)

Travertine (Ceramic Tile)

Terrestrial Sedimentary Rock / Calcium Carbonate (CaCO3)

Sandstone Pebble (Quartzite-rich)

Clastic Terrigenous Sedimentary Rock (SiO2 dominant)

Conglomerate with Native Copper

Clastic Sedimentary Rock with Native Copper (Cu)

Coquina / Fossiliferous Limestone

Calcite-rich Bioclastic Sedimentary Rock (CaCO3)

Sandstone (Quartzose Pebble)

Clastic Sedimentary Rock (Litharenite/Quartz arenite)

Sandstone (Greywacke)

Clastic Sedimentary Rock (SiO2 with lithic fragments)

Sandstone (with Iron Staining)

Clastic sedimentary rock (SiO2 with Fe2O3 oxides)

Siltstone

Siltstone (fined-grained clastic sedimentary rock)

Quartz Veined Siltstone or Graywacke

Clastic Sedimentary Rock with Quartz (SiO2) veining

Sandstone (River Cobble)

Clastic Sedimentary Rock (primarily Quartz with Feldspar)

Sandstone (Red Flagstone)

Clastic sedimentary rock (primarily Quartz - SiO2)

Sandstone Chert/Quartzite

Silicon Dioxide (SiO2) - Sedimentary Sandstone / Orthoquartzite

Sandstone (Ferruginous)

Clastic Sedimentary Rock (SiO2 with FeO/Fe2O3)

Carnelian

Chalcedony (cryptocrystalline quartz), SiO2 (Silicon Dioxide)

Sandstone

Clastic Sedimentary Rock (composed primarily of Quartz: SiO2)

Sandstone Concretion

Clastic Sedimentary Concretion (primarily SiO2 with Fe2O3 cement)

Sandstone (Weathered Pebble)

Arenite (primarily SiO2)

Sandstone (Ferruginous/Banded)

Clastic Terrigenous Sandstone (SiO2 with Fe2O3 cement)

Limestone with Calcite Veining

Calcium Carbonate (CaCO3)

Limestone (specifically Travertine or Tufa)

Calcium Carbonate (CaCO3)

Sandstone

Arenite (composed primarily of SiO2)

Ferruginous Sandstone (Red Sandstone)

Arenite with Hematite/Limonite cement

Sandstone (Greywacke/Lithic Sandstone)

Arenite / Lithic Sandstone

Sandstone (Ferruginous)

Arenite (iron-rich)

Sandstone

Arenite (SiO2 based with mineral cement)

Limestone (River Pebble)

Calcium Carbonate (CaCO3)

Dalmation Stone

Peralkaline Rock (SiO2 with Arfvedsonite)

Limestone

Calcium carbonate (CaCO3)

Sandstone (likely Quartzose)

Arenite (SiO2 principal mineral)

Sandstone (Ferruginous)

Arenite (Iron-rich)

Sandstone (Weathered Pebble)

Arenite (SiO2 primarily)

Sandstone

Arenite (primarily SiO2)

Sandstone (Quartzose)

Arenite (primarily SiO2)

Sandstone (Ferruginous)

Arenite (primarily SiO2 with Fe2O3 staining)

Sandstone (likely Arkose)

Arenite (composed mainly of SiO2 with Feldspar)