Chert (Jasper/Mudstone variety with Oxidation)
Silicon dioxide (SiO2)
Category
Browse sedimentary (chemically precipitated) specimens identified by the Rock Identifier community.
Chert (Jasper/Mudstone variety with Oxidation)
Silicon dioxide (SiO2)
Orange Calcite
Calcium Carbonate (CaCO3)
Amber with dark mineral/organic inclusions
Fossilized plant resin (amber; chiefly polymerized diterpenoid resin)
Chert (Nodule)
Silicon Dioxide (SiO2)
Chert (Nodule)
Silicon Dioxide (SiO2) - Cryptocrystalline Quartz
Chert (Nodule)
Chert (Cryptocrystalline Silica, SiO2)
Chert (often called Flint or Jasper)
Chert (Microcrystalline or Cryptocrystalline Silica, SiO2)
Chert (specifically Flint or Jasper variant)
Microcrystalline silica (SiO2)
Chert (specifically Pink Chert or Jasperized Chert)
Silicon Dioxide (SiO2) - Cryptocrystalline Quartz
Banded Calcite (often sold as Mexican Onyx or Aragonite)
Calcite/Aragonite (Calcium Carbonate, CaCO3)
Chert (often called Flint in this variation)
Silicon dioxide (SiO2) - Microcrystalline quartz
Chert (variations include Flint or Jasper)
Silicon Dioxide (SiO2)
Chert (Jasper/Chalcedony variety)
Silicon Dioxide (SiO2)
Chert (Chert Nodule)
Silicon Dioxide (SiO2)
Quartz Geode with Calcite
Silicon Dioxide (SiO2) with Calcium Carbonate (CaCO3)
Jasper
Microcrystalline Quartz (SiO2)
Hematite
Iron Oxide (Fe2O3)
Chert / Flint Nodule
Microcrystalline or Cryptocrystalline Quartz (SiO2)
Agate (Geode nodule)
Cryptocrystalline Quartz (SiO2)
Limestone
Calcium Carbonate (CaCO3)
Quartz Pebble (Iron-stained)
Silicon Dioxide (SiO2)
Limestone
Calcium Carbonate (CaCO3)
Limestone
Calcium Carbonate (CaCO3)
Limestone
Calcium Carbonate (CaCO3)
Limestone
Calcium Carbonate (CaCO3)
Limestone
Calcium Carbonate (CaCO3)
Quartz Geode
Silicon Dioxide (SiO2) within a geode
Quartz Geode
Silicon Dioxide (SiO2)
Banded Agate (Lace Agate)
Agate (Variety of Cryptocrystalline Quartz), SiO2
Jasper
Microcrystalline Quartz (SiO2) with impurities
Quartz
Silicon Dioxide (SiO2)
Quartz
Silicon Dioxide (SiO2)
Quartz Crystal
Silicon Dioxide (SiO2)
Jasper
Microcrystalline quartz (SiO2) with impurities
Celestite
Celestite (SrSO4)
Red Jasper
Silicon Dioxide (SiO2) with Iron Oxide inclusions
Quartz Geode / Druzy Quartz
Silicon Dioxide (SiO2)
Quartz Geode
Silicon Dioxide (SiO2)
Yellow or Honey Quartz
Silicon Dioxide (SiO2)
Quartz
Silicon Dioxide (SiO2)
Quartz
Silicon Dioxide (SiO2)
Yellow Jasper
Silicon Dioxide (SiO2) with Iron Oxide inclusions