Organic Specimen (Fossil)

Sandstone (Ferruginous)

Arenite (with Iron Oxide cement)

Limestone

Calcium Carbonate (CaCO3)

Limestone

Calcium Carbonate (CaCO3)

Banded Sandstone

Arenite (with iron oxide banding)

Sandstone (likely Graywacke or Lithic Sandstone)

Clastic Sedimentary Rock

Sandstone (likely with Borings or Vesicular Basalt)

Clastic Sedimentary Rock (Sandstone)

Sandstone (Ferruginous)

Arenite (composed primarily of SiO2 with Fe2O3 cement)

Sandstone (Ferruginous)

Arenite with Iron-oxide inclusions (SiO2 primarily)

Sandstone Concretion

Clastic Sedimentary Concretion (primarily SiO2 with Fe2O3 cement)

Dendritic Agate or Manganese Nodule in Chert/Limestone

Silicon Dioxide (SiO2) with Manganese Oxide (MnO2) inclusions

Sandstone (Ferruginous)

Arenite (SiO2 with Iron Oxide impurities)

Limestone (specifically Travertine or Tufa)

Calcium Carbonate (CaCO3)

Belemnite Fossil

Belemnitida (extinct order of Cephalopods)

Sandstone

Arenite (primarily SiO2)

Rugose Coral (Horn Coral)

Order Rugosa (extinct fossilized coral)

Septarian Nodule (Septarian Dragon Stone)

Septarian Concretion (Composition: Calcite, Aragonite, and Limestone/Clay)

Moss Agate

Silicon Dioxide with inclusions (SiO2 + impurities)

Fossiliferous Limestone

Calcium Carbonate - CaCO3

Limestone

Calcareous sedimentary rock (CaCO3)

Limestone with Calcite Veins

Sedimentary Calcium Carbonate (CaCO3)

Coquina

Biogenic Limestone (Calcitic shells)

Sandstone

Arenite (primarily SiO2)

Limestone

Calcium Carbonate (CaCO3)

Limestone

Calcium carbonate ( преимущественно CaCO3)

Limestone

Calcium Carbonate (CaCO3)

Shale

Fissile mudstone (rich in clay minerals and quartz)

Sandstone (Ferruginous)

Arenite (Fe-rich SiO2)

Sandstone

Clastic Sedimentary Rock (primarily Quartz, SiO2)

Sandstone

Arenite (SiO2, often with CaCO3 or Fe2O3 cement)

Sandstone (likely Red/Brown Sandstone)

Arenite (SiO2 based)

Sandstone

Arenite (composed primarily of SiO2)

Trilobite Fossil

Trilobita (Class), likely Phacopid or Asaphid order

Sandstone with Concretions / Liesegang Rings

Arenite with iron oxide banding

Ammonite Fossil

Ammonoidea (subclass)

Sandstone

Clastic sedimentary rock (primarily SiO2)

Sandstone (Ferruginous)

Arenite (primarily SiO2 with Iron Oxide staining)

Sandstone (with Iron Staining)

Clastic Sedimentary Rock (primarily Quartz with Fe2O3 staining)

Fighting Conch (Sea Shell)

Strombus alatus (primarily composed of Calcium Carbonate / CaCO3)

Chert Conglomerate (or Breccia)

Sedimentary Clastic Rock (variety: Ferruginous Chert Breccia)

Coral Fossil (Favosites type)

Phylum Cnidaria, Class Anthozoa (often CaCO3 - Calcium Carbonate)

Pyrite (Iron Pyrites)

Iron Sulfide (FeS2)

Silty Shale

Silty Shale (Fissile Sedimentary Rock)