Green Calcite
Calcium Carbonate (CaCO3)
Category
Browse sedimentary like (industrial composite) specimens identified by the Rock Identifier community.
Green Calcite
Calcium Carbonate (CaCO3)
Chert / Flint
Chert (SiO2)
Orthoclase Feldspar
Orthoclase (KAlSi3O8)
Chert (Jasper/Flint variety)
Microcrystalline Quartz (SiO2)
Magnetite Orthorthotropic Rock
Magnetite (Fe3O4)
Chert (Jasper/Flint variety)
Silicon Dioxide (SiO2)
Limonite Concretion
Limonite (Hydrated Iron Oxide) FeO(OH)·nH2O
Clear Quartz Crystal
Quartz (Silicon Dioxide - SiO2)
Clear Quartz
Silicon Dioxide (SiO2)
Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
Pyrite in Quartz
Iron Sulfide (FeS2) in Silicon Dioxide (SiO2)
Chert (Yellow Jasper/Flint)
Silicon Dioxide (SiO2)
Chert (Jasper focus)
Silicon dioxide (SiO2) - Microcrystalline Quartz
Chert (with Iron Staining)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
Fossiliferous Limestone
Calcium Carbonate (CaCO3)
Chert (v. Flint)
Sedimentary Cryptocrystalline Quartz (SiO2)
Fossilized Coral (Coquina/Limestone)
Cnidaria Anthozoa (Fossilized)
Satin Spar (Gypsum)
Hydrous Calcium Sulfate (CaSO4·2H2O)
Quartz
Silicon Dioxide (SiO2)
Chert (Gray Chalcedony)
Microcrystalline Quartz (SiO2)
Petrified Wood
Silicified Wood (primarily SiO2)
Chert (specifically Flint or Jasper variant)
Microcrystalline quartz (SiO2)
Sandstone with Manganese Dendrites
Clastic Sedimentary Rock (SiO2 based with MnO2 inclusions)
Sandstone
Arenite (primarily Quartz Arenite)
Chert (Flint)
Chert (SiO2)
Chert (Flint)
Microcrystalline Quartz (SiO2)
Sandstone (Ferruginous)
Arenite (Fe2O3 dominant staining)
Jasper (likely Kambaba or Crocodile Jasper variety)
Silicon Dioxide (SiO2) with inclusions
Red Sandstone
Arenite (predominantly SiO2 with Fe2O3)
Red Sandstone (Iron-rich)
Ferruginous Sandstone (variable formula, primarily SiO2 + Fe2O3)
Chert (with Iron Staining)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
Sandstone (Grooved/Weathered)
Arenite (composed primarily of Quartz and Lithic fragments)
Chert (Flint variety)
Silicon Dioxide (SiO2)
Chert (variations include Flint/Jasper)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
Chert (and Chert-based Jasper)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
Chert
Microcrystalline Quartz (SiO2)
Chert (and Flint)
Chert (SiO2)
Chert (Jasper/River Stone)
Silicon dioxide (SiO2) - Microcrystalline quartz
Chert (Jasper variation)
Microcrystalline Quartz (SiO2)
Chert (Flint)
Microcrystalline silica (SiO2)
Chert (Flint)
Microcrystalline Quartz (SiO2)
Coquina with Shell Fragment
Bioclastic Limestone (composed primarily of CaCO3)