Banded Agate
Agate (Silicon Dioxide, SiO2)
Category
Browse sedimentary (chemical) specimens identified by the Rock Identifier community.
Banded Agate
Agate (Silicon Dioxide, SiO2)
Chert (River Siltstone/Quartzite)
Sedimentary Cryptocrystalline Quartz (SiO2)
Chert (potentially Flint or Mudstone)
Microcrystalline Quartz (SiO2)
Chert (Jasper/Agate variety)
Microcrystalline Quartz (SiO2)
Chert (Jasper/Chalcedony)
Microcrystalline Quartz (SiO2)
Chert (Flint)
Microcrystalline Quartz (SiO2)
Chert (Nodule)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
Limestone
Calcium Carbonate (CaCO3)
Limestone (with Calcite Veining)
Calcium Carbonate (CaCO3)
Chert (Jasper)
Microcrystalline Quartz (SiO2)
Chert (Flint)
Chert (Cryptocrystalline Silicon Dioxide, SiO2)
Chert (White Chert or Flint)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
Chert (containing Iron Oxide)
Microcrystalline Quartz (SiO2)
Chert (Flint)
Microcrystalline Opaline Silica (SiO2)
Chert (with Quartz Vein)
Microcrystalline Quartz (SiO2)
Orange Calcite
Calcium Carbonate (CaCO3)
Calcite in Matrix
Calcium Carbonate (CaCO3)
Bauxite
Bauxite (Principal ore of aluminum; mixture of minerals including Gibbsite Al(OH)3, Boehmite and Diaspore AlO(OH))
Sandstone (Ferruginous)
Arenite with Iron-oxide inclusions (SiO2 primarily)
Chert (varietal Flint)
Microcrystalline quartz (SiO2)
Chert (Jasper variety)
Microcrystalline Quartz (SiO2)
Chert (often called Flint)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
Chert (Yellow Jasper)
Cryptocrystalline Silicon Dioxide (SiO2)
Brown Chert
Microcrystalline Quartz (SiO2)
Hematite (Ironstone) Nodule
Hematite (Fe2O3)
Chert (varieties including Flint or Jasper)
Microcrystalline Quartz (SiO2)
Chert / Flint
Silicon dioxide (SiO2)
Geode (Unopened)
Silicon dioxide with various inclusions (SiO2)
Chert (Quartz Variety)
Microcrystalline Silicon Dioxide (SiO2)
Chert (Jasper variation)
Microcrystalline Quartz (SiO2)
Vuggy Quartz / Chert
Silicon Dioxide (SiO2)
Orange Calcite
Calcium Carbonate (CaCO3)
Limonite after Marcasite (Propeller Conchoid)
Goethite/Limonite pseudomorph after Marcasite (FeO(OH)·nH2O)
Chert (Jasper)
Microcrystalline Quartz (SiO2)
Chert / Jasper
Microcrystalline Quartz (SiO2)
Chert (Flint)
Microcrystalline Quartz (SiO2)
Chert (Jasper variety)
Silicon Dioxide (SiO2)
Yellow Calcite
Calcium Carbonate (CaCO3)
Yellow Calcite
Calcite (Calcium Carbonate, CaCO3)
Chert (Arrowhead Debitage or Spall)
Silicon Dioxide (SiO₂)
Blue Howlite (Dyed)
Calcium Borosilicate Hydroxide (Ca2B5SiO9(OH)5)
Chert (variations include Flint/Chalcedony)
Chert (SiO2 - Silicon Dioxide)