Sandstone (with differential weathering)
Arenite / Quartz Sandstone (SiO2)
Category
Browse sedimentary (chemical) specimens identified by the Rock Identifier community.
Sandstone (with differential weathering)
Arenite / Quartz Sandstone (SiO2)
Red Chert (Jasper)
Silicon Dioxide (SiO2)
Limonite (Yellow Ochre)
Hydrated iron(III) oxide-hydroxide (FeO(OH)·nH2O)
Limestone with Calcite Veining
Sedimentary Calcium Carbonate (CaCO3)
Chert (often called Jasper or Flint)
Microcrystalline Quartz (SiO2)
Aragonite Star Cluster
Aragonite (Sputnik habit) - CaesarCO3
Chert (River Pebble)
Microcrystalline silicon dioxide (SiO2)
Dyed Agate
Chalcedony (Silicon Dioxide, SiO2)
Chert (Jasper)
Microcrystalline Quartz (SiO2)
Ferruginous Chert
Microcrystalline Quartz (SiO2) with Iron Oxides
Snakeskin Agate
Cryptocrystalline Quartz (SiO2)
Chert (and Quartz Gravel)
Chert (Cryptocrystalline Quartz, SiO2)
Ferruginous Sandstone (Ironstone)
Clastic Sedimentary Rock (composed of SiO2 with Fe2O3/FeO(OH) cement)
Limestone
Calcium Carbonate (CaCO3)
Chert (variety Gray or Dark Chert)
Silicon Dioxide (SiO2)
Chert (Flint)
Microcrystalline Silica (SiO2)
Chert (Jasper)
Microcrystalline Quartz (SiO2)
Chert (often called Jasper or River Siltstone)
Microcrystalline Quartz (SiO2)
Chert (Commonly known as Flint or Jasper)
Chert (SiO2)
Sandstone with Liesegang Rings
Liesegang-banded Sandstone
Chert (Jasper)
Microcrystalline Quartz (SiO2) with iron oxide inclusions
Chert (Jasper/Black Chert)
Silicon Dioxide (SiO2)
Quartz Geode
Crystalline Silicon Dioxide (SiO2) in Geode form
Chert (Flint Nodules)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
Chert (Jasper variation)
Silicon Dioxide (SiO2)
Chert (often called Jasper or River Siltstone)
Microcrystalline Quartz (SiO2)
Chert (Jasper-rich)
Microcrystalline/Cryptocrystalline Quartz (SiO2)
Limonite Concretion
Goethite-Limonite (FeO(OH)·nH2O)
Chert / Flint Nodules in Sandstone
Microcrystalline Quartz (SiO2) within Clastic Sedimentary Rock
Banded Chert (Jasper)
Silicon Dioxide (SiO2)
Chert (Nodule)
Microcrystalline Quartz (SiO2)
Chert (specifically Flint or Common Chert)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
Chert (specifically Jasper/Agate variety)
Microcrystalline Quartz (SiO2)
Chert (specifically White Chert or Flint)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
Quartz Geode with Chalcedony
Crystalline Silicon Dioxide (SiO2)
Chert (Flint)
Microcrystalline Quartz (SiO2)
Chert (Flint variety)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
Chert (Yellow Jasper/Flint pebble)
Microcrystalline Quartz (SiO2)
Pyrite with Limonite/Goethite Alteration (Pseudomorph)
Iron Sulfide (FeS2) transitioning to Hydrated Iron Oxides (FeO(OH)·nH2O)
Agate
Agate (SiO2)
Fossiliferous Chert
Silicon Dioxide (SiO2) with fossil inclusions
Limestone (Porous/Travertine variant)
Sedimentary Calcium Carbonate (CaCO3)