Fossiliferous Limestone
Calcium Carbonate (CaCO3) with fossil inclusions
Category
Browse anthropogenic sedimentary style organic solid specimens identified by the Rock Identifier community.
Fossiliferous Limestone
Calcium Carbonate (CaCO3) with fossil inclusions
Chert (Green Jasperiod)
Chert (Microcrystalline Quartz, SiO2)
Chert (Flint)
Chert (SiO2)
Chert (Jasper variety)
Silicon Dioxide (SiO2)
Chert
Microcrystalline Quartz (SiO2)
Chert (Black Chert/Flint)
Silicon Dioxide (SiO2)
Chert (often called Flint or Jasper if reddish)
Microcrystalline Quartz (SiO2)
Chert (Jasper)
Microcrystalline Quartz (SiO2)
Chert (often called Flint)
Chert (Cryptocrystalline Silica, SiO2)
Chert (Jasper/Flint variety)
Silicon Dioxide (SiO2)
Chert (Jasper/Mudstone)
Microcrystalline Quartz (SiO2)
Chert (often called Flint)
Microcrystalline Quartz (SiO2)
Fossil Shark Tooth
Selachimorpha (Chondrichthyes dental fossil)
Chert (Jasper influence)
Microcrystalline Quartz (SiO2)
Fossiliferous Limestone (with Crinoids)
CaCO3 (Calcium Carbonate)
Chert
Cryptocrystalline Quartz (SiO2)
Travertine
Tufa limestone (CaCO3)
Chert (Jasper)
Microcrystalline Quartz (SiO2)
Dendritic Agate
Silicon Dioxide with Manganese/Iron oxide inclusions (SiO2)
Chert (Flint variety)
Microcrystalline or cryptocrystalline Quartz (SiO2)
Chert (White Chert or Flint)
Microcrystalline Quartz (SiO2)
Chert (Green variety)
Silicon Dioxide (SiO2)
Chert (Jasper/Common Opal mix)
Microcrystalline Quartz (SiO2)
Petrified Wood
Silicified Wood (primarily SiO2)
Chert / Flint
Chert (Cryptocrystalline Silica, SiO2)
Fossiliferous Limestone
Biogenic Limestone (Calcium Carbonate, CaCO3)
Chert (Green variety)
Microcrystalline or cryptocrystalline Quartz (SiO2)
Shale (sub-type: Carbonaceous Shale)
Lutaceous Sedimentary Rock
Petrified Wood
Silicified Wood (SiO2)
Petrified Wood
Silicified Wood (primarily SiO2)
Petrified Wood
Silicified Wood (SiO2)
Amber
Succinite (Resin C10H16O)
Amber
Succinite (fossilized resin)
Fossil Shell Fragment (possibly Brachiopod or Bivalve)
Calcium Carbonate (CaCO3) - Phylum Brachiopoda or Mollusca
Chert (River Siltstone/Quartzite)
Sedimentary Cryptocrystalline Quartz (SiO2)
Travertine
Terrestrial Sedimentary Limestone (CaCO3)
Red Jasper
Jasper (Silicon Dioxide, SiO2)
Petrified Wood
Silicified Wood (SiO2)
Chert (specifically Pink/Tan Chert)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
Chert (Arrowhead/Artifact Fragment)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
Yellow Jasper
Silicon Dioxide (SiO2) with iron inclusions
Petrified Wood
Silicified Wood (SiO2)