Chert (River Pebble with Liesegang Rings)
Microcrystalline Silicon Dioxide (SiO2)
Category
Browse sedimentary (chemical) specimens identified by the Rock Identifier community.
Chert (River Pebble with Liesegang Rings)
Microcrystalline Silicon Dioxide (SiO2)
Limonite (Ochreous)
FeO(OH)·nH2O (Hydrated Iron Oxide)
Chert / Jasper
Cryptocrystalline Quartz (SiO2)
Chert (Jasper)
Cryptocrystalline Silicon Dioxide (SiO2)
Chert (and Jasper/Chalcedony mixture)
Microcrystalline Quartz (SiO2)
Chert (Jasper)
Silicon Dioxide (SiO2)
Yellow Calcite
Calcium Carbonate (CaCO3)
Quartz (Milky/Clear variety)
Silicon Dioxide (SiO2)
Quartz
Silicon Dioxide (SiO2)
Bauxite
Bauxite (Al(OH)3, γ-AlO(OH), and α-AlO(OH))
Bauxite
Bauxite (mixture of hydrous aluminum oxides: Al(OH)3 & AlO(OH))
Limonite with Trace Fossils
Hydrous Iron Oxide Mixture (FeO(OH)·nH2O)
Travertine (often colloquially called Tufa)
Chemical Sedimentary Calcium Carbonate (CaCO3)
Chert (Flint)
Microcrystalline Quartz (SiO2)
Quartz (Small Fragment)
Silicon Dioxide (SiO2)
Chert (Flint)
Chert (Cryptocrystalline silicon dioxide, SiO2)
Geode or Concretion
Silica-rich Concretion or Unopened Geode (SiO2)
Limonite (Iron Ore)
Hydrated iron(III) oxide-hydroxide (FeO(OH)·nH2O)
Jasper
Silicon dioxide (SiO2) with impurities
Chert (Flint)
Silicon Dioxide (SiO2)
Orange Calcite (Mexican Onyx)
Calcium Carbonate (CaCO3)
Chert (Red Jasper variety)
Silicon Dioxide (SiO2)
Chert (specifically Flint or Dark Chert)
Silicon Dioxide (SiO2)
Optical Calcite (Iceland Spar)
Calcite (Calcium Carbonate, CaCO3)
Chert (and Chalcedony)
Microcrystalline Quartz (SiO2)
Onyx Marble (Banded Calcite)
Calcite (Calcium Carbonate, CaCO3)
Chert (Flint)
Chert (Microcrystalline or cryptocrystalline Quartz, SiO2)
Calcite (Optical or Clear Calcite)
Calcium Carbonate (CaCO3)
Orange Calcite
Calcite (Calcium Carbonate, CaCO3)
Calcite
Calcium Carbonate (CaCO3)
Chert / Chalcedony
Microcrystalline Quartz (SiO2)
Optical Calcite (Iceland Spar)
Calcite (Calcium Carbonate, CaCO3)
Chert (Jasper/Agate variety)
Silicon Dioxide (SiO2)
Bauxite
Bauxite (Mixture of Al(OH)3, AlO(OH), and Fe2O3)
Limestone
Calcium Carbonate (CaCO3)
Bauxite
Bauxite (principal ore of aluminum, primarily Al(OH)3)
Bauxite (Aluminum Ore)
Hydrated aluminum oxides, primarily Al(OH)3, AlO(OH)
Quartz
Silicon Dioxide (SiO2)
Travertine (Tufa)
Chemical Sedimentary Rock / Travertine (CaCO3)
Yellow Calcite
Calcium Carbonate (CaCO3)
Chert
Microcrystalline Quartz (SiO2)
Chert (Jasper variety)
Silicon Dioxide (SiO2)