Fossilized Shark Tooth
Carcharhinus sp. (likely Bull or Requiem shark family)
Category
Browse sedimentary (fossilized organic remains) specimens identified by the Rock Identifier community.
Fossilized Shark Tooth
Carcharhinus sp. (likely Bull or Requiem shark family)
Shark Tooth Fossil
Carcharhiniformes or Lamniformes (order level fossil)
Amber
Succinite (approximate formula C10H16O)
Amber
Succinite (Fossilized Resin)
Amber
Fossilized Resin (C10H16O)
Amber
Succinite (C10H16O)
Chert
Sedimentary Cryptocrystalline Quartz (SiO2)
Banded Chert / Jasper
Silicon Dioxide (SiO2)
Fossilized Shark Tooth
Chondrichthyes (Class)
Fossilized Plant or Tree Bark
Lepidodendron or Sigillaria (example genera)
Fossilized Bone Fragment
Vertebrate Fossil Material (Apatite/Calcium Phosphate)
Crinoid Stem Fossil
Class Crinoidea (Phylum Echinodermata), often preserved in Limestone or Calcite (CaCO3)
Fossilized Bone Fragment
Permineralized Vertebrate Fossil (Hydroxyapatite replaced by Minerals)
Chert (specifically Cryptocrystalline Quartz)
Silicon dioxide (SiO2)
Chert (often called Flint or Jasper)
Microcrystalline quartz (SiO2)
Chert (Jasper)
Microcrystalline Quartz (SiO2)
Chert (Flint)
Microcrystalline silica (SiO2)
Chert (White/Gray variety)
Silicon Dioxide (SiO2 / Cryptocrystalline Quartz)
Chert (Flint)
Silicon Dioxide (SiO2)
Chert (Flint)
Silicon Dioxide (SiO2)
Chert (Flint)
Chert (SiO2)
Chert (Flint)
Microcrystalline Quartz (SiO2)
Chert (Jasper)
Cryptocrystalline Silicon Dioxide (SiO2)
Fossiliferous Limestone (with Coralline Inclusions)
Calcium Carbonate (CaCO3)
Green Chert
Microcrystalline Quartz (SiO2)
Chert
Microcrystalline Quartz (SiO2)
Chert (Jasper/Chalcedony mix)
Microcrystalline Quartz (SiO2)
Amber
Succinite (Organic Gemstone)
Fossilized Wood (Petrified Wood) and Associated Rocks
Silicified Wood / Xylopal
Petrified Wood
Silicified Wood (primarily SiO2)
Fossilized Bivalve Shell
Bivalvia (Phylum Mollusca)
Amber
Succinite (fossilized tree resin, C10H16O)
Chert (and Fossilized Brachiopod shell)
Sedimentary Cryptocrystalline Quartz (SiO2)
Amber
Succinite (specifically for Baltic amber); chemical formula approximately C10H16O
Chert (Jasper variety)
Microcrystalline Quartz (SiO2)
Chert (Flint/Jasper variety)
Microcrystalline Quartz (SiO2)
Chert / Flint
Chert (SiO2)
Chert (Flint)
Cryptocrystalline Quartz (SiO2)
Chert (River Pebble)
Microcrystalline or cryptocrystalline Quartz (SiO2)
Botiroidal Chalcedony or Silicified Fossil Coral
Silicon Dioxide (SiO2) - Chalcedony / Scleractinia (if fossilized)
Petoskey Stone
Hexagonaria percarinata (Fossilized Rugose Coral)
Mookaite Jasper
Silicified Radiolarite (SiO2)