Igneous And Fossil

Fossilized Shark Tooth

Elasmobranchii (tooth fossil, composed mainly of Bioapatite / Calcium Phosphate)

Mammoth or Mastodon Tooth Fossil

Mammuthus / Mammut tooth

Fossilized Shark Tooth

Chondrichthyes (Class)

Dinosaur Fossil Tooth

Vertebrate Fossilized Tooth

Fossil Shark Tooth

Chondrichthyes (Class)

Mammoth Molar Fossil

Mammuthus primigenius (Tooth fragment)

Fossil Shark Tooth

Chondrichthyes (Class)

Fossilized Shark Tooth

Chondrichthyes (Class)

Scallop Shell Fossil

Pecten sp.

Fossilized Shark Tooth

Chondrichthyes (class) fossilized tooth

Fossil Shark Tooth

Selachii (fossilized dentition)

Fossilized Gastropod Steinkern

Class Gastropoda internal mold

Fossil Snail

Gastropoda (fossilized)

Fossil Sponge / Horn Coral / Crinoid Stem

Phylum Porifera or Cnidaria fossilized in calcium carbonate / silica

Lepidodendron Fossil in Sandstone

Lepidodendron (Lycophytina, Lepidodendrales)

Pyritized Ammonite

Ammonitida (replaced by Iron Disulfide, FeS2)

Vesicular basalt (possibly scoriaceous basalt)

Basalt, primarily plagioclase + pyroxene ± olivine; vesicles commonly lined or filled with secondary zeolites/calcite

Vesicular basalt (likely scoria)

Basaltic volcanic rock; chiefly plagioclase, pyroxene, and olivine, with vesicles formed by trapped gas

Vesicular basalt (likely scoria or weathered pumice)

Vesicular basalt; chiefly plagioclase, pyroxene, olivine, and volcanic glass

Polished orbicular granite

Orbicular granite, commonly quartz–feldspar–biotite granite with orbicules

Weathered brown stone, likely basalt or iron-stained volcanic rock

Indeterminate; possibly vesicular basalt (mafic silicate rock)

Vesicular basalt (likely weathered scoria)

Basaltic volcanic rock; chiefly plagioclase, pyroxene, and iron-rich olivine, with vesicles

Fossiliferous limestone, likely coral limestone

Bioclastic calcite (CaCO₃), commonly derived from fossil coral or shell material

Fossil Turtle Shell

Testudines carapace fossil

Fossiliferous Limestone Pebble

Limestone with fossil inclusion

Fossilized Shark Tooth (fragment)

Elasmobranchii (Class) fossil

Fossilized Vertebra

Chordata fossil (Vertebra)

Mammoth Tooth

Mammuthus tooth fossil

Fossilized Bone

Permineralized Vertebrate Fossil

Fossilized Shark Tooth (Dermal Denticle or worn tooth fragment)

Elasmobranchii (fossil remains)

Rounded pink granite pebble

Granite, chiefly quartz, potassium feldspar, plagioclase, and biotite; exact identification is limited by the small image

Fossil Shell

Brachiopod or Mollusk fossil

Fossil Seashell

Invertebrate fossil (Bivalvia)

Fossilized Gastropod Internal Mold

Gastropoda (Steinkern fossil)

Fossil Shark Tooth

Chondrichthyes tooth fossil

Fossil Coral

Scleractinia (Fossilized Coral) / Calcium Carbonate (CaCO3) or Silica (SiO2)

Fossilized coral (likely colonial coral)

Fossil scleractinian coral; possibly *Thamnasteria* or a related coral

Fossiliferous limestone

Bioclastic carbonate rock, chiefly calcite (CaCO₃), containing fossil fragments—possibly coral or bryozoan

Weathered fossil-bearing limestone

Limestone, predominantly calcite (CaCO₃), possibly fossiliferous or brecciated

Fossiliferous Sandstone (with Quartz patch)

Sedimentary Sandstone with Silicified Shell Fragments

Fossiliferous Sandstone / Quartzite Pebble

Sedimentary rock with skeletal fragments (e.g., Paleozoic crinoid/brachiopod fossils)

Fossilized bone or tooth fragment in rock matrix

Indeterminate vertebrate fossil; mineralized apatite (carbonate-fluorapatite) with silica/carbonate-rich matrix