Rock Identifier

Category

Sedimentary (Cryptocrystalline Silica)

Browse sedimentary (cryptocrystalline silica) specimens identified by the Rock Identifier community.

Druzy Quartz on Agate/Chert (Silicon Dioxide (SiO2)) — mineral

Druzy Quartz on Agate/Chert

Silicon Dioxide (SiO2)

Chert (Tan/Grey variety) (Silicon Dioxide (SiO2)) — sedimentary

Chert (Tan/Grey variety)

Silicon Dioxide (SiO2)

Jasper (Iron-rich Chert) (Silicon Dioxide (SiO2) with impurities of Hematite or Goethite) — sedimentary

Jasper (Iron-rich Chert)

Silicon Dioxide (SiO2) with impurities of Hematite or Goethite

Chert (Jasper/Agate variety) (Microcrystalline Quartz (SiO2)) — sedimentary

Chert (Jasper/Agate variety)

Microcrystalline Quartz (SiO2)

Chert (varieties include Flint or Jasper) (Chert (cryptocrystalline quartz; SiO₂)) — Sedimentary

Chert (varieties include Flint or Jasper)

Chert (cryptocrystalline quartz; SiO₂)

Banded Agate (Cryptocrystalline Quartz (SiO2)) — mineral

Banded Agate

Cryptocrystalline Quartz (SiO2)

Chert (specifically Jasper or Flint variant) (Cryptocrystalline Quartz (SiO2)) — sedimentary

Chert (specifically Jasper or Flint variant)

Cryptocrystalline Quartz (SiO2)

Jasper (Iron-stained Chalcedony) (SiO2 with Fe2O3 (Iron Oxide) impurities) — Sedimentary / Mineral (Silica)

Jasper (Iron-stained Chalcedony)

SiO2 with Fe2O3 (Iron Oxide) impurities

Sedimentary / Mineral (Silica)

Chert (often called Flint in this variation) (Silicon dioxide (SiO2) - Microcrystalline quartz) — sedimentary

Chert (often called Flint in this variation)

Silicon dioxide (SiO2) - Microcrystalline quartz

Chert (Flint variety) (Microcrystalline Quartz (SiO2)) — sedimentary

Chert (Flint variety)

Microcrystalline Quartz (SiO2)

Chalcedony in Host Rock (Silicon Dioxide (SiO2)) — mineral

Chalcedony in Host Rock

Silicon Dioxide (SiO2)

Yellow Chert or Jasper (Silicon Dioxide (SiO2)) — sedimentary

Yellow Chert or Jasper

Silicon Dioxide (SiO2)

Chert (Jasper) (Microcrystalline Quartz (SiO2)) — sedimentary

Chert (Jasper)

Microcrystalline Quartz (SiO2)

Chert (specifically Flint or Jasper variant) (Microcrystalline Quartz (SiO2)) — sedimentary

Chert (specifically Flint or Jasper variant)

Microcrystalline Quartz (SiO2)

Chert / Jasper (Microcrystalline Quartz (SiO2)) — sedimentary

Chert / Jasper

Microcrystalline Quartz (SiO2)

Chert (Grey-Green Var.) (Silicon Dioxide (SiO2)) — sedimentary

Chert (Grey-Green Var.)

Silicon Dioxide (SiO2)

Chert (Nodule) (Microcrystalline Quartz (SiO2)) — sedimentary

Chert (Nodule)

Microcrystalline Quartz (SiO2)

Chert (with small quartz inclusion) (Microcrystalline Silica (SiO2)) — sedimentary

Chert (with small quartz inclusion)

Microcrystalline Silica (SiO2)

Agate Geode (Cryptocrystalline Quartz (SiO2)) — mineral

Agate Geode

Cryptocrystalline Quartz (SiO2)

Chert (with Manganese Dendrites) (Chert (Cryptocrystalline Quartz, SiO2)) — sedimentary

Chert (with Manganese Dendrites)

Chert (Cryptocrystalline Quartz, SiO2)

Chert (Flint) (Microcrystalline or cryptocrystalline quartz (SiO2)) — sedimentary

Chert (Flint)

Microcrystalline or cryptocrystalline quartz (SiO2)

Chert (often called Flint in this context) (Microcrystalline or Cryptocrystalline Quartz (SiO2)) — sedimentary

Chert (often called Flint in this context)

Microcrystalline or Cryptocrystalline Quartz (SiO2)

Chert (Chert / Flint variety) (Microcrystalline or Cryptocrystalline Quartz (SiO2)) — sedimentary

Chert (Chert / Flint variety)

Microcrystalline or Cryptocrystalline Quartz (SiO2)

Chert (Flint Nodules) (Silicon Dioxide (SiO2)) — sedimentary

Chert (Flint Nodules)

Silicon Dioxide (SiO2)

Jasper (likely Brown or Brecciated) (Jasper (Silicon Dioxide, SiO2)) — sedimentary

Jasper (likely Brown or Brecciated)

Jasper (Silicon Dioxide, SiO2)

Chert (Chert (Microcrystalline Silica, SiO2)) — sedimentary

Chert

Chert (Microcrystalline Silica, SiO2)

Chert (specifically Flint) (Microcrystalline quartz (SiO2)) — sedimentary

Chert (specifically Flint)

Microcrystalline quartz (SiO2)

Chert (Jasper/Carnelian variety) (Microcrystalline Quartz (SiO2)) — sedimentary

Chert (Jasper/Carnelian variety)

Microcrystalline Quartz (SiO2)

Chert (Nodule) (Chert (primarily Microcrystalline Quartz - SiO2)) — sedimentary

Chert (Nodule)

Chert (primarily Microcrystalline Quartz - SiO2)

Chert (Flint) (Microcrystalline or Cryptocrystalline Quartz (SiO2)) — sedimentary

Chert (Flint)

Microcrystalline or Cryptocrystalline Quartz (SiO2)

Chert (Nodule) (Microcrystalline Silica (SiO2)) — sedimentary

Chert (Nodule)

Microcrystalline Silica (SiO2)

Chert (Basanite / Flint variety) (Microcrystalline Quartz (SiO2)) — sedimentary

Chert (Basanite / Flint variety)

Microcrystalline Quartz (SiO2)

Chert (Yellow Jasper/Flint) (Microcrystalline Quartz (SiO2)) — sedimentary

Chert (Yellow Jasper/Flint)

Microcrystalline Quartz (SiO2)

Chert (specifically Flint or Jasper variant) (Microcrystalline or Cryptocrystalline Quartz (SiO2)) — sedimentary

Chert (specifically Flint or Jasper variant)

Microcrystalline or Cryptocrystalline Quartz (SiO2)

Chert (often called Flint or Jasper) (Microcrystalline or Cryptocrystalline Quartz (SiO2)) — sedimentary

Chert (often called Flint or Jasper)

Microcrystalline or Cryptocrystalline Quartz (SiO2)

Chert (Chert / Flint Variety) (Microcrystalline / Cryptocrystalline Quartz (SiO2)) — sedimentary

Chert (Chert / Flint Variety)

Microcrystalline / Cryptocrystalline Quartz (SiO2)

Chert (Microcrystalline Quartz (SiO2)) — sedimentary

Chert

Microcrystalline Quartz (SiO2)

Chert (Nodule) (Microcrystalline Quartz (SiO2)) — sedimentary

Chert (Nodule)

Microcrystalline Quartz (SiO2)

Chert / Pink Flint (Cryptocrystalline Quartz (SiO2)) — sedimentary

Chert / Pink Flint

Cryptocrystalline Quartz (SiO2)

Chert / Flint (Cryptocrystalline quartz (SiO2)) — sedimentary

Chert / Flint

Cryptocrystalline quartz (SiO2)

Chert (Chert Nodule) (Microcrystalline quartz (SiO2)) — sedimentary

Chert (Chert Nodule)

Microcrystalline quartz (SiO2)

Chert (Nodule) (Microcrystalline Quartz (SiO2)) — sedimentary

Chert (Nodule)

Microcrystalline Quartz (SiO2)