Chert (Flint)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
Category
Browse sedimentary (chemical) specimens identified by the Rock Identifier community.
Chert (Flint)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
Chert / Greenstone
Silicon Dioxide (SiO2) with impurities
Chert (Flint)
Microcrystalline Quartz (SiO2)
Chert (Flint)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
Chert (Jasper variety)
Silicon Dioxide (SiO2)
Chert (Jasper/Flint variety)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
Chert (Jasper/Flint variety)
Microcrystalline Quartz (SiO2)
Glauconitic Sandstone
Glauconitic arenite (contains (K,Na)(Fe3+,Al,Mg)2(Si,Al)4O10(OH)2)
Chert (often called Flint when dark)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
Chert (Flint)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
Chert (Mudstone)
Microcrystalline Quartz (SiO2)
Chert (Iron-stained)
Microcrystalline Quartz (SiO2)
Glauconitic Sandstone
Glauconitic Sandstone (contains (K,Na)(Fe,Al,Mg)2(Si,Al)4O10(OH)2)
Chert (Flint)
Chert (Silicon Dioxide, SiO2)
Chert (Flint)
Silicon Dioxide (SiO2) - Microcrystalline Quartz
Chert (Basanite variety)
Microcrystalline Quartz (SiO2)
Chert (Chert / Flint)
Silicon Dioxide (SiO2)
Chert (White Flint)
Microcrystalline Quartz (SiO2)
Fossiliferous Limestone (Shell Fragment)
Biogenic Limestone (Calcium Carbonate / CaCO3)
Chert (Jasper variation)
Silicon Dioxide (SiO2)
Chert (often called Flint)
Silicon Dioxide (SiO2)
Chert (Iron-stained or Dark)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
Chert (Flint)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
Chert (Flint)
Chert (SiO2)
Chert (Flint) Nodule
Microcrystalline or Cryptocrystalline Quartz (SiO2)
Chert (Flint) with Glauconite
Microcrystalline Quartz (SiO2)
Sandstone (Quartz Arenite)
Sandstone (Chemical formula: primarily SiO2)
Chert (Iron-stained)
Microcrystalline Quartz (SiO2)
Chert (Black Chert / Flint)
Silicon Dioxide (SiO2)
Chert (containing Calcite or Quartz inclusions)
Silicon Dioxide (SiO2) with varying mineral impurities
Banded Chert (River Stone)
Silicon Dioxide (SiO2)
Limestone
Calcium Carbonate (CaCO3)
Chert
Chert (Silicon Dioxide, SiO2)
Bauxite
Bauxite (Al2O3·2H2O)
Chert (often called Flint)
Microcrystalline or cryptocrystalline Quartz (SiO2)
Chert (specifically Flint or Jasper variant)
Silicon Dioxide (SiO2)
Bauxite
AlOx(OH)3-2x (mixture of Gibbsite, Boehmite, and Diaspore)
Chert (often called Flint)
Chert (SiO2)
Flint / Chert
Silicon dioxide (SiO2)
Orange Calcite
Calcium Carbonate (CaCO3)
Bauxite
Bauxite (Al(OH)3, γ-AlO(OH), and α-AlO(OH))
Yellow Calcite
Calcium Carbonate (CaCO3)