Fossiliferous Limestone (Coquina / Shell Limestone)
Biogenic Limestone (Calcium Carbonate, CaCO3)
Category
Browse anthropogenic (man made material mimicking sedimentary rock) specimens identified by the Rock Identifier community.
Fossiliferous Limestone (Coquina / Shell Limestone)
Biogenic Limestone (Calcium Carbonate, CaCO3)
Red Sandstone
Arenite (Ferruginous Sandstone)
Siltstone with iron staining
Siltstone (primarily SiO2 with FeO(OH) coatings)
Chert (Flint)
Silicon Dioxide (SiO2)
Chert (Nodule)
Crystalline Silicon Dioxide (SiO2)
Chert (Pebble)
Microcrystalline or cryptocrystalline Quartz (SiO2)
Chert (Flint variety)
Microcrystalline Quartz (SiO2)
Chert Pebble
Microcrystalline Quartz (SiO2)
Mica Schist
Schist (Muscovite/Biotite Schist)
Chert
Microcrystalline Quartz (SiO2)
Chert (variations include Flint or Jasper)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
Chert (Flint Nodules)
Silicon Dioxide (SiO2)
Chert (often called Jasper in this color variety)
Microcrystalline Quartz (SiO2)
Chert (specifically White Chert or Flint)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
Chert (Jasper/Flint variety)
Silicon Dioxide (SiO2)
Chert (Beach Pebble)
Microcrystalline Quartz (SiO2)
Yellow Calcite
Calcite (Calcium Carbonate, CaCO3)
Petrified Dinosaur Bone (Gembone)
Agatized Dinosaur Bone
Red Jasper
Quartz (Silicon Dioxide) with Iron Oxide impurities (Fe2O3)
Chert (Flint)
Microcrystalline Quartz (SiO2)
Pyrite
Iron Sulfide (FeS2)
Chert (Flint/Chalcedony)
Microcrystalline Quartz (SiO2)
Petrified Wood
Silicified Wood (SiO2)
Chert (Flint)
Microcrystalline Quartz (SiO2)
Orange Calcite
Calcium Carbonate (CaCO3)
Sandstone
Arenite (primarily Quartz SiO2)
Chert (and Limestone)
Silicon Dioxide (SiO2)
Pyrite
Iron Sulfide (FeS2)
Snakeskin Agate
Agate (Cryptocrystalline Quartz, SiO2)
Chert (often colloquially called Flint)
Chert (Microcrystalline Quartz, SiO2)
Banded Calcite (often marketed as Mexican Onyx or Onyx Marble)
Calcite (Calcium Carbonate, CaCO3)
Chert (Jasper/Flint variety)
Microcrystalline silicon dioxide (SiO2)
Petrified Wood
Silicified Wood (primarily Chalcedony/Quartz, SiO2)
Chert (and Petrified Wood)
Silicon Dioxide (SiO2)
Sandstone
Arenite
Chert (variant Flint/Jasper)
Microcrystalline Opaline Silica (SiO2)
Chert (Field Pebble)
Microcrystalline / Cryptocrystalline Quartz (SiO2)
Chert (Flint)
Microcrystalline Silica (SiO2)
Bauxite
Bauxite (mixture of Gibbiste Al(OH)3, Boehmite ̳-AlO(OH), and Diaspore ́-AlO(OH))
Chert (Iron-stained)
Microcrystalline Quartz (SiO2)
Amber
Succinite
Green Chert
Microcrystalline Quartz (SiO2)