Limestone
Calcium Carbonate (CaCO3)
sedimentary
Category
Igneous And Fossil
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Limestone (Fossiliferous)
Calcium Carbonate (CaCO3)
sedimentary
Shale (possibly Carbonaceous or Oil Shale)
Laminated Mudstone (primarily clay minerals and quartz)
sedimentary
Sandstone (Calcareous/Lithic)
Sedimentary Rock (Clastic Sandstone with Calcium Carbonate cement)
sedimentary
Sandstone
Arenite (Sandstone)
sedimentary
Limestone (River Stone)
Calcium Carbonate (CaCO3)
sedimentary
Ironstone Concretion
Ferruginous Siltstone/Ironstone (Fe2O3)
sedimentary
Limestone with Lichen
Calcium Carbonate (CaCO3) with Endolithic/Epilithic Lichen
sedimentary
Sandstone
Arenite (SiO2 based)
sedimentary
Crushed Limestone
Limestone (CaCO3)
sedimentary
Sandstone
Arenite
sedimentary
Siltstone/Sandstone (possibly Wonderstone or Picture Sandstone)
Clastic Sedimentary Rock (primarily SiO2 with Iron Oxide inclusions)
Sedimentary
Sandstone (Quartzose)
Arenite (primarily SiO2)
sedimentary
Sandstone Pebble
Arenite (primarily SiO2)
sedimentary
Sandstone with Manganese Dendrites
Arenite (mostly SiO2) with Manganese Oxide inclusions (MnO2)
sedimentary
Amber
Succinite (Fossilized Tree Resin)
gemstone
Fossiliferous Limestone (Coquina / Shell Limestone)
Biogenic Limestone (Calcium Carbonate, CaCO3)
sedimentary
Coquina
Biogenic Limestone (Calcium Carbonate - CaCO3)
sedimentary
Amber
Succinite (C10H16O)
Mineraloid
Red Sandstone
Arenite (primarily Quartz with Iron Oxide)
sedimentary
Sandstone
Clastic Sedimentary Rock (composed primarily of Quartz: SiO2)
sedimentary
Limestone
Calcium Carbonate (CaCO3)
sedimentary
Amber
Succinite (specifically for Baltic amber; fossilized tree resin)
Organic (Sedimentary-associated)
Hag Stone
Perforated Flint or Chert (SiO2)
sedimentary
Sandstone Cobble
Arenite (primarily Quartz Arenite)
sedimentary
Limestone
Calcium Carbonate (CaCO3)
sedimentary
Sandstone (likely Quartzose)
Arenite (primarily SiO2)
sedimentary
Petrified Wood
Silicified wood (primarily SiO2)
sedimentary
Chert (specifically Tan/Yellow Chert)
Silicon Dioxide (SiO2)
sedimentary
Limestone with fossil crinoid stems
Calcium Carbonate (CaCO3) containing Crinoidea fossils
sedimentary
Coral Rock (Coquina)
Biogenic Limestone (Calcium Carbonate - CaCO3)
sedimentary
Sandy Ironstone
Ferruginous Sandstone
sedimentary
Amber-bearing Coal/Sedimentary Rock
Bituminous coal or carbonaceous siltstone with Fossilized Tree Resin (C10H16O)
sedimentary
Limestone
Calcium Carbonate (CaCO3)
sedimentary
Dendritic Agate (Blue Chalcedony)
Silicon Dioxide (SiO2)
sedimentary
Sandstone (Quartzose)
Arenite (SiO2 based)
sedimentary
Fossiliferous Shale
Carbonaceous Shale (with potential plant/aquatic fossils)
sedimentary
Sandstone
Sandstone (principally SiO2/Silicon Dioxide)
sedimentary
Shale
Argillaceous sedimentary rock
sedimentary
Coquina
Biogenic Limestone (Calcium Carbonate, CaCO3)
sedimentary
Claystone Concretion
Septarian Concretion (Ironstone-rich)
sedimentary
Limestone or Sandstone Cobble
Sedimentary rock (Calcium carbonate or Quartz based)
sedimentary