Mineralized Fossil

Petrified Wood

Silicified Wood (SiO2)

Sandstone (Fossiliferous)

Arenite / Clastic Sedimentary Rock

Fossiliferous limestone, possibly containing a brachiopod or bivalve fossil

Calcite-rich limestone (CaCO₃), with an apparent shell impression or shell fragment

Red Sandstone

Arenite (primarily Quartz SiO₂ with Hematite Fe₂O₃ staining)

Sandstone

Arenite (SiO2 based)

Sandstone (Quartzose)

Arenite (SiO2 based)

Ironstone Concretion (Limonite/Goethite)

Ironstone (composed primarily of Goethite FeO(OH) and Limonite)

Fossilized Coral

Hexagonaria (Rugose and Tabulate coral fossils)

Fossiliferous Chert with Brachiopod Impression

Chert (SiO2) containing Brachiopoda fossil remains

Stromatolite

Stromatolite (Cyanobacteria-formed Organo-sedimentary structure)

Petrified Wood

Silicified wood (principally SiO2)

Oyster Shell Fragment

Crassostrea virginica (or related Bivalvia)

Petrified Bone Pebble

Silicified Fossilized Bone

Shale

Shale (clastic sedimentary rock composed of silt and clay-sized particles)

Sandstone (Quartzose)

Arenite (primarily SiO2)

Sandstone (Quartzose)

Arenite (primarily SiO2)

Sandstone

Arenite (SiO2 primarily)

Petoskey Stone

Hexagonaria percarinata (Fossilized colonial rugose coral)

Fossilized Limestone with Crinoid Stem

Carboniferous Limestone (containing Crinoidea ossicles)

Fossiliferous Limestone Pebble

Biogenic Sedimentary Rock (CaCO3)

Shale

Shale (clastic sedimentary rock)

Fossilized Shark Tooth (Eroded)

Carcharodon sp. or Otodus sp. fragment (likely)

Sandstone

Arenite (predominantly Quartz Sandstone)

Fossil Shark Tooth

Otodus sp. (possibly Otodus obliquus)

Turritella Agate

Silicified Elimia tenera Fossil (SiO2)

Spinosaurus aegyptiacus Fossil

Spinosaurus aegyptiacus (permineralized hydroxyapatite)

Small seashell fossil or shell fragment

Likely calcium-carbonate shell material, chiefly aragonite or calcite; exact species indeterminate

Petrified Wood

Silicified Wood (Permineralized organic tissue)

Sand Tiger Shark Tooth (Fossil)

Carcharias taurus (fossilized dentin/enameloid)

Fossilized Sand Tiger Shark Tooth

Carcharias sp. (likely Carcharias taurus or Striatolamia)

Limestone

Calcium carbonate (CaCO3)

Bivalve Fossil (Clam Stone)

Phylum Mollusca, Class Bivalvia

Bivalve Fossil (Clam)

Class Bivalvia, likely Mercenaria or similar genus

Kambaba Jasper

Stromatolite (Fossilized Algae)

Crushed Stone (Gravel/Aggregates)

Crushed rock aggregate (varied composition including Granite, Limestone, and Quartz)

Petrified Wood

Silicified wood (primarily quartz, SiO2)

Petrified Wood

Silicified Wood (SiO2)

Sandstone (with Laminations)

Clastic sedimentary rock (primarily Quartz-based)

Sandstone

Arenite (SiO2 based)

Sandstone (likely Quartzose)

Arenite (primarily SiO2)

Petrified Wood

Silicified wood (SiO2)

Fossiliferous Limestone

Limestone (composed primarily of calcite with included fossils CaCO3)