Green Chert
Microcrystalline Quartz (SiO2)
Category
Browse sedimentary (chemical) specimens identified by the Rock Identifier community.
Green Chert
Microcrystalline Quartz (SiO2)
Glauconite (Greensand)
Glauconite (K,Na)(Fe3+,Al,Mg)2(Si,Al)4O10(OH)2
Ooids (Oolites)
Ooids (composed of Calcium Carbonate / CaCO3)
Chert (Flint variety)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
Chert (Flint)
Microcrystalline Silicon Dioxide (SiO2)
Bauxite
Bauxite (Mixture including Gibbsite Al(OH)3, Boehmite γ-AlO(OH), and Diaspore α-AlO(OH))
Chert (Jasper variety)
Silicon Dioxide (SiO2)
Chert (or Flint)
Microcrystalline Quartz (SiO2)
Chert (Jasper/Flint variety)
Microcrystalline Quartz (SiO2)
Chert (River Pebble)
Microcrystalline Quartz (SiO2)
Chert (Yellow or Tan variety)
Microcrystalline or cryptocrystalline Quartz (SiO2)
Chert (Iron-stained)
Microcrystalline quartz (SiO2)
Chert (Flint/Gray Chalcedony)
Silicon Dioxide (SiO2)
Chert Pebble with Inclusion
Microcrystalline Quartz (SiO2)
Chert (Yellow Jasper)
Microcrystalline Quartz (SiO2)
Chert (Arrowhead/Tool Grade)
Microcrystalline Quartz (SiO2)
Chert (specifically as a lithic artifact/projectile point)
Chert (Silicon dioxide, SiO2)
Chert (Iron-stained)
Microcrystalline Quartz (SiO2)
Chert (Flint)
Microcrystalline Quartz (SiO2)
Dalmatian Stone (Dalmatian Jasper)
Peralkaline Quartz-Feldspar Rock with Arfvedsonite
Limonite (Ironstone Concretion)
Limonite (Hydrous ferric oxide mixture, FeO(OH)·nH2O)
Limestone
Calcareous sedimentary rock (primarily CaCO3)
Chert (Green and Black Jasper variant)
Cryptocrystalline Quartz (SiO2)
Limonite Concretion
Limonite (FeO(OH)·nH2O) Pseudomorph
Barite Rose on Marcasite
Barium Sulfate (BaSO4) on Iron Sulfide (FeS2)
Chert (variations like Flint or Jasper)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
Quartz (Milky/Smoky variety)
Silicon Dioxide (SiO2)
Quartz Geode
Quartz (SiO2) within a geode structure
Chert (Nodule)
Silicon Dioxide (SiO2)
Chert (Yellow or Tan Chert)
Silicon Dioxide (SiO2)
Quartz (Milky/Smoky Crystal fragment)
Silicon Dioxide (SiO2)
Chert (Field-collected variety)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
Banded Chert with Quartz Veining
Microcrystalline Quartz (SiO2)
Calcite on Limestone
Calcium Carbonate (CaCO3) on Sedimentary Rock
Orange Calcite
Calcium Carbonate (CaCO3)
Blue Calcite
Calcium Carbonate (CaCO3)
Yellow Calcite
Calcium Carbonate (CaCO3)
Dyed Chalcedony (Agate)
Silicon Dioxide (SiO2) with artificial pigment
Green Calcite
Calcium Carbonate (CaCO3)
Orange Calcite
Calcium Carbonate (CaCO3)
Limestone (Travertine/Tufa variant)
Calcium Carbonate (CaCO3)
Orange Calcite
Calcium Carbonate (CaCO3)