Chert (often called Flint or Jasper)
Microcrystalline Quartz (SiO2)
Category
Browse sedimentary (man made conglomerate) specimens identified by the Rock Identifier community.
Chert (often called Flint or Jasper)
Microcrystalline Quartz (SiO2)
Limestone
Calcareous sedimentary rock (CaCO3)
Brecciated Jasper
Silicon Dioxide (SiO2) with varying mineral inclusions (Iron Oxide, Hematite, Clay)
Sandstone
Arenite
Chert (Flint)
Chert (SiO2)
Hoodoo (Limestone / Siltstone Formation)
Claron Formation (Sedimentary Rock - Limestone, Mudstone, Dolomite)
Bituminous Coal (with Anthracite or Vitrinite inclusion)
Organic-rich Sedimentary Rock (Carboniferous classification)
Sandstone (likely Fossilized Wood or Concrete Simulacrum)
Arenite / Silicified Wood / Anthropogenic Concrete
Jasper Marble
Silicon Dioxide (SiO2) with Impurities
Flint
Silicon Dioxide (SiO2) - Microcrystalline Quartz / Chert
Chert (varietal Flint)
Microcrystalline quartz (SiO2)
Pearl
Calcium Carbonate (CaCO3) with Conchiolin
Bauxite
Bauxite (Al(OH)3, γ-AlO(OH), and α-AlO(OH))
Chert (Jasper type)
Microcrystalline Quartz (SiO2)
Chert (Jasper)
Microcrystalline Quartz (SiO2)
Chert (Flint)
Microcrystalline Quartz (SiO2)
Chert (Jasper/Flint variety)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
Fossilized Shark Tooth (Sand Tiger)
Carcharias sp. (Fossilized Tooth)
Coquina / Fossiliferous Limestone
Fossiliferous Limestone (Calcite, CaCO3)
Chert Nodule
Microcrystalline Quartz (SiO2)
Chert (Jasper variety)
Microcrystalline Quartz (SiO2)
Chert
Chert (Microcrystalline Quartz, SiO2)
Chert (Common Variety, Jasper)
Microcrystalline Quartz (SiO2)
Chert (Yellow Jasper/Flint)
Microcrystalline Quartz (SiO2)
Chert (Jasper/Flint variety)
Microcrystalline Quartz (SiO2)
Chert (Nodule)
Chert (Alpha-Quartz, SiO2)
Chert (Nodule)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
Chert (Jasper/Flint variety)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
Chert / Flint
Silicon Dioxide (SiO₂)
Diamond
Native Carbon (C)
Chert (Quartz Variety)
Chert (Silicon Dioxide, SiO2)
Flint
Sedimentary cryptocrystalline quartz (SiO2)
Hag Stone (Flint with natural hole)
Silicon Dioxide (SiO2) - Nodular Chert / Flint
Banded Calcite or Travertine
Calcium Carbonate (CaCO3)
Coquina
Coquina (Bioclastic Limestone)
Pyrite
Iron Sulfide (FeS2)
Pyrite
Iron Disulfide (FeS2)
Chert (Chocolate or Brown Flint)
Chert (SiO2)
Chert (Flint)
Chert (Cryptocrystalline Silica, SiO2)
Sandstone
Arenite (SiO2 primarily)
Banded Chert / Chalcedony
Silicon Dioxide (SiO2)
Pyrite (Fool's Gold)
Iron Disulfide (FeS2)