Red Jasper (with Quartz inclusions)
Silicon Dioxide (SiO2)
Category
Browse sedimentary (physico chemical) specimens identified by the Rock Identifier community.
Red Jasper (with Quartz inclusions)
Silicon Dioxide (SiO2)
Jasper with Hematite (Red Jasper)
Silicon Dioxide with Iron Oxide (SiO2 and Fe2O3)
Chert (Flint)
Silicon Dioxide (SiO2)
Chert/Flint Nodule
Microcrystalline Quartz (SiO2)
Chert (River Pebble)
Silicon Dioxide (SiO2)
Quartz Pebble
Silicon Dioxide (SiO2)
Chert (Yellow/Tan Variety)
Chert (SiO2)
Travertine (Tufa)
Chemical Sedimentary Rock (CaCO3)
Travertine (Tufa)
Chemical Sedimentary Limestone (CaCO3)
Calcite
Calcium carbonate (CaCO3)
Chert
Microcrystalline or cryptocrystalline quartz
Weathered quartz-rich pebble
Likely quartz aggregate, SiO₂, possibly quartzite or silicified rock
Milky quartz
Quartz (silicon dioxide, SiO₂)
Chert (Jasper/Mudstone variety with Oxidation)
Silicon dioxide (SiO2)
Orange Calcite (Polished Point)
Calcium carbonate (CaCO3)
Limonite/Goethite Concretion
Goethite (FeO(OH))
Orange Calcite
Calcium Carbonate (CaCO3)
Orange Calcite
Calcite (Calcium Carbonate, CaCO3)
Chert
Chert (Microcrystalline Quartz)
Ferruginous Sandstone
Arenite with Iron-Oxide cement (Fe2O3 · nH2O)
Banded Sedimentary Rock
Sedimentary rock with Liesegang banding
Orange Calcite
Calcium Carbonate (CaCO3)
Chert (Flint / Chalcedony pebble)
Silicon Dioxide (SiO2)
Calcite
Calcite (Calcium Carbonate, CaCO3)
Chert (or Flint)
Chert (SiO2)
Quartz pebble
Silicon dioxide (SiO2)
Iron-rich rock or Concretion
Ironstone or Limonite concretion
Orange Calcite
Calcium Carbonate (CaCO3)
Limestone with Chert
Calcium Carbonate (CaCO3) with Silica (SiO2) inclusions
Soil with Mineral Detritus and Quartz Fragments
Regolith / Silicate Mineral Aggregate
Chert (Jasper variation)
Silicon Dioxide (SiO2)
Clear Quartz
Silicon Dioxide (SiO2)
Quartz (Granular)
Silicon Dioxide (SiO2)
Banded Chert
Silicon Dioxide (SiO2)
Chert (Yellow Jasper variant)
Silicon Dioxide (SiO2) - Microcrystalline Quartz
Chert nodules in Limestone
Microcrystalline Quartz (SiO2) in Calcium Carbonate (CaCO3) matrix
Banded Chert
Microcrystalline Quartz (SiO2)
Limonite (Ironstone Concretion)
Limonite (Hydrated iron(III) oxide-hydroxide, mixtures of FeO(OH)·nH2O)
Concrete fragment with Aggregate
Anthropogenic Concrete with Calcarious and Siliceous Aggregate
Quartz (Small Fragment)
Silicon Dioxide (SiO2)
Orange Calcite (Cleavage Rhomb)
Calcite (Calcium Carbonate, CaCO3)
Mudstone/Siltstone with Liesegang Bands
Argillaceous Sedimentary Rock with Chemical Banding