Fossilized Shark Tooth
Chondrichthyes (class)
fossil
Category
Organic (Paper And Cellulose)
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Jasper
Silicon Dioxide (SiO2) with impurities
sedimentary
Fossilized Shark Tooth
Chondrichthyes (Class)
fossil
Fossil Shark Tooth
Chondrichthyes (class)
fossil
Petrified Wood
Petrified Wood (Silicified Wood)
fossil
Petrified Wood
Silicified Wood (SiO2)
fossil
Green Jasper
Microcrystalline Quartz (SiO2) with mineral inclusions
sedimentary
Fossilized Shark Tooth
Lamniformes (order) fossil
fossil
Fossil Shark Tooth Fragment
Elasmobranchii dentition (fragment)
fossil
Coquina / Shelly Limestone
Coquina (Biogenic Limestone)
sedimentary
Petrified Wood
Silicified Wood (primarily SiO2)
fossil
Fossil Shark Tooth
Chondrichthyes tooth fossil
fossil
Jasper
Silicon Dioxide (SiO2) with impurities
sedimentary
Fossilized Bone
Fossilized Vertebrate Bone (Per mineralized)
fossil
Petrified Wood
Silicified Wood (primarily Quartz/Chalcedony, SiO2)
fossil
Dinosaur Fossil (Skull)
Dinosauria fossilis (Petrified Hydroxyapatite / Calcium Carbonate)
sedimentary
Sandstone with Fossil Leaf Impression
Sedimentary rock (Sandstone/Siltstone matrix) with Carbonaceous film fossil
fossil
Chert (Beach Pebble)
Silicon Dioxide (SiO2)
sedimentary
Chert (Green variety)
Silicon Dioxide (SiO2)
sedimentary
Fossilized Bone
Vertebrate fossil (mineralized bone)
fossil
Petrified Wood
Silicified wood (primarily quartz, SiO2)
fossil
Petrified Wood
Silicified Wood (SiO2 permineralization)
fossil
Chalcedony in Matrix (likely Agatized Coral or Chert)
Silicon Dioxide (SiO2)
sedimentary
Petrified Wood
Silicified wood (primarily Silicon Dioxide, SiO2)
metamorphic
Chert (Flint)
Microcrystalline Quartz (SiO2)
sedimentary
Petrified Wood
Silicified Wood (SiO2)
sedimentary
Red Coral
Corallium rubrum
gemstone
Petrified Wood
Silicified Wood (SiO2)
sedimentary
Red Jasper Pebble
Opaque microcrystalline Quartz (SiO2) with Iron Oxide
sedimentary
Chert (v. Flint)
Chert (Microcrystalline Quartz, SiO2)
sedimentary
Fancy Jasper
Jasper (Cryptocrystalline Quartz, SiO2)
sedimentary
Jasper
Microcrystalline Quartz (SiO2 with iron oxide impurities)
sedimentary
Fossilized Coral (Petrified Coral)
Lithostrotionella (example genus) / Scleractinia
fossil
Chert (Green Jasper)
Microcrystalline Quartz (SiO2) with iron silicate inclusions
sedimentary
Tiger Shark Fossil Tooth
Galeocerdo cuvier (fossilized)
sedimentary
Seashell Fossil
Gastropoda fossil
fossil
Mammoth or Mastodon Tooth Fragment
Mammuthus / Mammut molar fragment
fossil
Sand Tiger Shark Tooth (Fossil)
Carcharias taurus (fossilized dentin/enameloid)
fossil
Limestone with Lichen
Calcium Carbonate (CaCO3) with Endolithic/Epilithic Lichen
sedimentary
Chert (Gravel)
Chert (Microcrystalline Silicon Dioxide, SiO2)
sedimentary
Chert (River Pebble)
Silicon Dioxide (SiO2)
sedimentary
Oyster Shell Fragment
Crassostrea virginica (or related Bivalvia)
fossil