Chert
Microcrystalline Quartz (SiO2)
sedimentary
Category
Sedimentary (Fossilized Organic Remains)
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Banded Chert
Microcrystalline Quartz (SiO2)
sedimentary
Amber
Succinite
Organic (Mineraloid)
Chert
Microcrystalline Quartz (SiO2)
sedimentary
Chert (Flint)
Microcrystalline Quartz (SiO2)
sedimentary
Chert (Jasper/Chaldcedony)
Silicon Dioxide (SiO2)
sedimentary
Chert (Nodule)
Microcrystalline Quartz (SiO2)
sedimentary
Chert (Jasper variety)
Silicon dioxide (SiO2)
sedimentary
Chert (Flint)
Microcrystalline Quartz (SiO2)
sedimentary
Chert (Flint)
Cryptocrystalline Quartz (SiO2)
sedimentary
Chert
Microcrystalline Quartz (SiO2)
sedimentary
Chert (Jasper/Chalcedony)
Silicon dioxide (SiO2) - Microcrystalline quartz
sedimentary
Chert (Flint)
Microcrystalline Quartz (SiO2)
sedimentary
Amber Chert (Jasper)
Microcrystalline Quartz (SiO2)
sedimentary
Chert (Chalcedony/Flint)
Silicon Dioxide (SiO2)
sedimentary
Chert (Nodule)
Cryptocrystalline Quartz (SiO2)
sedimentary
Chert (Flint)
Microcrystalline or cryptocrystalline Quartz (SiO2)
sedimentary
Chert (Arrowhead variety)
Chert (SiO2)
sedimentary
Chert (Flint)
Silicon Dioxide (SiO2)
sedimentary
Chert (Flint/Jasper)
Silicon Dioxide (SiO2)
sedimentary
Chert (Jasper/Flint variety)
Silicon Dioxide (SiO2)
sedimentary
Chert (Jasper variety)
Microcrystalline Quartz (SiO2)
sedimentary
Fossilized bone, likely a large vertebrate limb or rib fragment
Petrified bone; exact taxon indeterminate from the image
fossil
Amber
Organic gemstone (Succinite)
mineral
Amber
Succinite (fossilized resin)
mineraloid
Fossilized bivalve shell fragment
Fossil Mollusca, likely a bivalve (class Bivalvia); exact genus cannot be determined from the image
fossil
Chert (Yellow variety)
Microcrystalline quartz (SiO2)
sedimentary
Chert (Jasper/Flint variety)
Microcrystalline Quartz (SiO2)
sedimentary
Fossiliferous Rock (Invertebrate Fossil in Matrix)
Fossiliferous limestone or shaly matrix containing skeletal fossil remains
fossil
Pink shell fragment
Calcium carbonate, likely aragonite or calcite (CaCO₃); probably a bivalve or gastropod shell fragment
fossil
Limestone
Calcium Carbonate (CaCO3)
sedimentary
Amber
Amber (Fossilized Tree Resin)
mineral
Fossil Shark Tooth
Chondrichthyes (class); likely Lamniformes (order) fossilized in Apatite/Hydroxyapatite
fossil
Chert (Jasper)
Microcrystalline Quartz (SiO2) with hematite impurities
sedimentary
Chert (Yellow Jasper variant)
Silicon Dioxide (SiO2)
sedimentary
Chert (Flint Nodules)
Silicon Dioxide (SiO2)
sedimentary
Amber
Succinate (Fossilized Tree Resin)
fossil
Chert (Jasper)
Microcrystalline Quartz (SiO2)
sedimentary
Fossilized Shark Tooth (Fragment)
Elasmobranchii (fossilized tooth)
fossil
Seashell Fossil
Invertebrate fossil (phylum Mollusca)
fossil
Likely amber or yellow-brown chalcedony/jasper fragment
Uncertain; possible amber (fossilized resin) or iron-stained chalcedony/quartz
mineral
Fossilized Sand Tiger Shark Tooth
Carcharias taurus / Striatolamia macrota (mineralized as Hydroxylapatite/Francolite)
sedimentary (fossil)