Igneous And Fossil

Coral Fossil (Favosites)

Favosites (Extinct genus of tabulate corals)

Fossilized Syringopora (Piping Organ Coral)

Syringopora (Extinct Genus of Tabulate Coral)

Petrified Wood

Silicified wood (SiO2)

Fossilized Bivalve Shell (Fossilized Clam)

Bivalvia (class) / CaCO3 (Calcium Carbonate)

Fossil Coral (Rugose Coral / Horn Coral fragment)

Rugosa (Tetracoralla) / Calcite (CaCO3)

Turritella Agate / Fossiliferous Limestone

Elimia tenera (commonly mislabeled as Turritella in chalcedony/calcite matrix)

Fossilized Gastropod Shell

Gastropoda (Fossilized internal mold or shell body)

Fossilized Shark Tooth (Carcharocles/Otodus or Sand Tiger Shark Tooth)

Elasmobranchii (Fossilized Tooth)

Fossiliferous Limestone / Fossil Fragment

Calcium Carbonate (CaCO3) with indeterminate biogenic remains

Petrified Wood

Silicified Wood (SiO2)

Petrified Wood

Silicified Wood (SiO2)

Rugose Coral Fossil

Order Rugosa

Coal

Bituminous Coal / Anthracite

Lepidodendron Fossil (Scale Tree)

Lepidodendron

Coal

Bituminous Coal / Anthracite

Petrified Wood

Silicified wood (Quartz replacement, SiO2)

Fossilized Coral

Rugosa or Tabulate Coral Fossil (Replacement by Silica/Calcite)

Fossilized Coral

Rugose coral / Tabulate coral fossil in limestone matrix

Fossilized Sand Dollar

Echinoidea (Clypeasteroida)

Fossilized Bone / Dinosaur Fossil

Fossilized vertebrate bone (permineralized)

Petrified Wood

Silicified wood (SiO2 - Silicon Dioxide)

Fossilized Shark Tooth

Carcharhinus sp. (likely Bull or Requiem shark family)

Fossilized Tiger Shark Tooth

Galeocerdo cuvier (fossilized hydroxylapatite)

Fossil Shell Fragment (possibly Brachiopod or Bivalve)

Calcium Carbonate (CaCO3) - Phylum Brachiopoda or Mollusca

Fossilized Sea Urchin (Echinoid)

Echinoidea (Class) - likely replaced by Calcite or Quartz

Petoskey Stone

Hexagonaria percarinata (Fossilized Rugose Coral)

Tumbled Stone Collection (Fluorite, Sodalite, Moss Agate, Amethyst/Charoite, and Grey Agate)

Silica (SiO2) and Calcium Fluoride (CaF2) based minerals

Fossilized Favosites (Honeycomb Coral)

Favosites (extinct genus of tabulate coral)

Trilobite Fossil (Flexicalymene)

Flexicalymene ouzregui

Likely weathered fossil-bearing limestone

Calcareous sedimentary rock, primarily calcite (CaCO₃); fossil identity uncertain from the image

Fossiliferous limestone

Bioclastic limestone, predominantly calcite (CaCO₃)

Fossilized Coral / Fossiliferous Limestone

Anthozoa fossil in Limestone (CaCO3)

Quartz-rich sandstone or granitic fragment

Likely quartz–feldspar sandstone; exact identification is uncertain from the photograph

Weathered limestone or calcitic fossil fragment

Calcite-rich carbonate rock; primarily CaCO₃

Sandstone with Brachiopod Mold Fossil

Sedimentary rock (Sandstone) with indeterminate Brachiopod mold

Turritella Agate (Fossiliferous Chert)

Silicified Elimia tenera (Fossiliferous Chalcedony)

Weathered granite pebble

Granite; primarily quartz, feldspar, and mica

Vesicular basalt (probable)

Basalt, typically composed of plagioclase, pyroxene, and olivine

Weathered quartz-rich granitic rock

Granite or granitic pegmatite; chiefly quartz (SiO₂), feldspar, and minor mica/iron oxides

Fossil Assortment and Geological Specimens

Various (including Ammonoidea)

Porphyritic volcanic rock, likely andesite or basalt with weathered feldspar phenocrysts

Porphyritic andesite–basalt; chiefly plagioclase feldspar and pyroxene, with possible olivine or iron oxides

Fossiliferous Limestone with Crinoid Stem

Sedimentary Rock with Crinoidea Fossil