Limestone with fossil crinoid stems
Calcium Carbonate (CaCO3) containing Crinoidea fossils
sedimentary
Category
Organic (Biological Organism)
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Amber
Succinite (C10H16O)
mineral
Fossiliferous Limestone
Calcium Carbonate (CaCO3) with marine fossils
fossil
Amber
Succinite (with approximate formula C10H16O)
mineraloid
Fossiliferous Limestone with Brachiopod
Limestone (Calcium Carbonate, CaCO3) with Phylum Brachiopoda fossil
sedimentary
Trace Fossil (Lichenandites or Rhynie Chert Chert with Microfossils)
Trace fossil in microcrystalline quartz (SiO2)
fossil
Hag Stone
Perforated Sedimentary Rock (typically Chert or Limestone)
sedimentary
Fossiliferous Limestone
Fossiliferous Calcilutite / Biomicrite
sedimentary
Fossiliferous Limestone (Coral Fossil)
Scleractinian Coral in Calcium Carbonate (CaCO3)
sedimentary
Fossiliferous Shale Matrix
Clastic Sedimentary Rock with Brachiopod or Mollusk shell fragments
sedimentary
Amber
Succinite (C10H16O)
Mineraloid
Amber
Succinicum (Organic Gemstone - Resinite)
mineraloid
Amber
Succinite (a fossilized organic resin)
mineral
Pearl
Calcium Carbonate (Aragonite) with Conchiolin; formula: CaCO3
mineral
Tahitian Pearl
Biogenic Calcium Carbonate (Aragonite/Calcite), CaCO3
mineral
Amber (Rough Baltics/Beach Specimen)
Succinicum (Organic Gemstone - Fossilized Resin)
mineral
Fossiliferous Limestone
Biogenic Limestone (CaCO3)
sedimentary
Amber
Resinite (Succinite if from the Baltic); Chemical Formula: C10H16O (approximate)
Organic Diamond/Gemstone (often associated with Sedimentary sequences)
Chert (Black Flint)
Microcrystalline Quartz (SiO2)
sedimentary
Limestone (specifically Bituminous or Carbonaceous Limestone)
Calcium Carbonate (CaCO3) with Organic Impurities
sedimentary
Amber
Succinite (approximate formula C10H16O)
mineral
Abalone Shell / Mother of Pearl
Haliotis sp. (Nacreous shell layer)
fossil
Amber
Succinite (fossilized resin)
mineral
Amber
Succiniferous organic material (Succinite)
fossil
Brachiopod Fossil in Chert
Phylum Brachiopoda within Microcrystalline Quartz (SiO2)
sedimentary
Amber
Succinite (approximate formula C10H16O)
mineral
Amber
Succinite (fossilized resin)
mineral
Amber
Succinite (C10H16O)
mineraloid
Amber
Succinite (with approximate formula C10H16O)
mineraloid
Pearl (incorporated into jewelry)
Aragonite and Calcite (CaCO3)
mineral
Fossiliferous Limestone
Calcareous biomicrite / Calcium Carbonate (CaCO3)
sedimentary
Fossilized Shark Tooth
Carcharocles sp. or Striatolamia sp. (Phosphate/Carbonate mineralized Hydroxyapatite)
sedimentary
Fossiliferous Limestone
Biogenic Limestone (Calcium Carbonate, CaCO3)
sedimentary
Black Pearl (Tahitian Type)
Aragonite / Pinctada margaritifera (CaCO3 + Conchiolin)
Organic Gemstone
Olive Sea Shell Fossil
Oliva sp. (Calcium Carbonate, CaCO3)
fossil
Amber
Succinite (Fossilized Resin)
fossil
Amber
Succinite (specifically for Baltic amber); Approximate formula: C10H16O
Organic Gemstone (Mineraloid)
Amber
Succinrite (Organic Gemstone)
mineraloid
Fossiliferous Limestone
Sedimentary Calcium Carbonate (CaCO3)
sedimentary
Amber
Fossilized Tree Resin (Succinate)
mineral
Chert (Cherty Flint)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
sedimentary
Pumice
Vesicular volcanic glass (primarily SiO2 with Al2O3)
Igneous