Rock Identifier

Category

Sedimentary (Cryptocrystalline Silica)

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

Learn about Sedimentary (Cryptocrystalline Silica) in the encyclopedia

Quartzite Sandstone

Quartzite Sandstone

Tripolite

Chert

Kambaba Jasper

Tintenbar Opal

Diatomite

Ironstone

Landscape Agate

Landscape Agate

Tube Agate

Sweetwater Agate

Sweetwater Agate

Frost Agate

Coldwater Agate

Chert / Flint (Silicon dioxide (SiO2)) — sedimentary

Chert / Flint

Silicon dioxide (SiO2)

Grey Chalcedony (Tumbled) (Chalcedony (SiO2)) — mineral

Grey Chalcedony (Tumbled)

Chalcedony (SiO2)

Jasper (specifically Chert/Ironstone) (Silicon Dioxide (SiO2) with Iron Oxide (Fe2O3) inclusions) — sedimentary

Jasper (specifically Chert/Ironstone)

Silicon Dioxide (SiO2) with Iron Oxide (Fe2O3) inclusions

Red Jasper (Silicon dioxide with iron inclusions (SiO2)) — sedimentary

Red Jasper

Silicon dioxide with iron inclusions (SiO2)

Chert Nodule (Microcrystalline Quartz (SiO2)) — sedimentary

Chert Nodule

Microcrystalline Quartz (SiO2)

Chert (Microcrystalline Quartz (SiO2)) — sedimentary

Chert

Microcrystalline Quartz (SiO2)

Red Jasper with Quartz Veins (SiO2 (Silicon Dioxide with Iron Oxide inclusions)) — sedimentary

Red Jasper with Quartz Veins

SiO2 (Silicon Dioxide with Iron Oxide inclusions)

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

Chert (Flint)

Microcrystalline Quartz (SiO2)

Chert (Microcrystalline Quartz (SiO2)) — sedimentary

Chert

Microcrystalline Quartz (SiO2)

Chert (often called Flint when found in chalk/limestone) (Microcrystalline or Cryptocrystalline Quartz (SiO2)) — sedimentary

Chert (often called Flint when found in chalk/limestone)

Microcrystalline or Cryptocrystalline Quartz (SiO2)

Banded Chert (Cryptocrystalline Quartz (SiO2)) — sedimentary

Banded Chert

Cryptocrystalline Quartz (SiO2)

Flint / Chert (Silicon dioxide (Microcrystalline quartz, SiO2)) — sedimentary

Flint / Chert

Silicon dioxide (Microcrystalline quartz, SiO2)

Chalcedony / Quartz Nodule (Agate Pebble) (Silicon Dioxide (SiO2)) — mineral

Chalcedony / Quartz Nodule (Agate Pebble)

Silicon Dioxide (SiO2)

Chalcedony (Silicon Dioxide (SiO2)) — mineral

Chalcedony

Silicon Dioxide (SiO2)

Red Jasper (Silicon Dioxide (SiO2) with Hematite impurities) — sedimentary

Red Jasper

Silicon Dioxide (SiO2) with Hematite impurities

Banded Chert / Chalcedony (Silicon Dioxide (SiO2)) — sedimentary

Banded Chert / Chalcedony

Silicon Dioxide (SiO2)

Carnelian (Carnelian Agate (SiO2)) — mineral

Carnelian

Carnelian Agate (SiO2)

Banded Chert (Jasper) (Silicon Dioxide (SiO2)) — sedimentary

Banded Chert (Jasper)

Silicon Dioxide (SiO2)

Yellow Chert Pebbles/Yellow Jasper (Microcrystalline Quartz (SiO2) with Goethite or Limonite inclusions) — sedimentary

Yellow Chert Pebbles/Yellow Jasper

Microcrystalline Quartz (SiO2) with Goethite or Limonite inclusions

Chert / Chalcedony (Silicon Dioxide (SiO2)) — sedimentary

Chert / Chalcedony

Silicon Dioxide (SiO2)

Flint (Chert variant) (Silica (SiO2) - Microcrystalline Quartz) — sedimentary

Flint (Chert variant)

Silica (SiO2) - Microcrystalline Quartz

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

Chert (Jasper)

Microcrystalline Quartz (SiO2)

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

Chert (Flint)

Silicon Dioxide (SiO2)

Agate (Chalcedony) (Cryptocrystalline Quartz (SiO2)) — mineral

Agate (Chalcedony)

Cryptocrystalline Quartz (SiO2)

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

Chert (Nodular Chert)

Microcrystalline Silica (SiO2)

Yellow Jasper (Silicon Dioxide (SiO2) with iron oxide inclusions) — sedimentary

Yellow Jasper

Silicon Dioxide (SiO2) with iron oxide inclusions

Polished Agate (Green and White Chalcedony) (Silicon Dioxide (SiO2) - Microcrystalline Quartz) — mineral

Polished Agate (Green and White Chalcedony)

Silicon Dioxide (SiO2) - Microcrystalline Quartz

Grey Chalcedony (Silicon Dioxide (SiO2)) — mineral

Grey Chalcedony

Silicon Dioxide (SiO2)

Chalcedony (Agate/Chert) (Chalcedony (Silicon Dioxide, SiO2)) — mineral

Chalcedony (Agate/Chert)

Chalcedony (Silicon Dioxide, SiO2)

Green Chert (Jasper) (Cryptocrystalline Quartz (SiO2)) — sedimentary

Green Chert (Jasper)

Cryptocrystalline Quartz (SiO2)

Chert (specifically Yellow/Honey Jasper variety) (Cryptocrystalline Quartz (SiO2)) — sedimentary

Chert (specifically Yellow/Honey Jasper variety)

Cryptocrystalline Quartz (SiO2)

Jasper with Quartz Vein (Microcrystalline quartz (SiO2) and chalcedony with a quartz vein) — sedimentary

Jasper with Quartz Vein

Microcrystalline quartz (SiO2) and chalcedony with a quartz vein

Chert (Polished Gemstone / River Stone) (Microcrystalline or Cryptocrystalline Quartz (SiO2)) — sedimentary

Chert (Polished Gemstone / River Stone)

Microcrystalline or Cryptocrystalline Quartz (SiO2)

Chert (Nodular Chert) (Microcrystalline or cryptocrystalline Quartz (SiO2)) — sedimentary

Chert (Nodular Chert)

Microcrystalline or cryptocrystalline Quartz (SiO2)

Chert Concretion (Microcrystalline Quartz (SiO2)) — sedimentary

Chert Concretion

Microcrystalline Quartz (SiO2)

Jasper (Jasper (Silicon Dioxide, SiO2)) — sedimentary

Jasper

Jasper (Silicon Dioxide, SiO2)

Banded Agate (Cryptocrystalline Quartz (SiO2)) — sedimentary

Banded Agate

Cryptocrystalline Quartz (SiO2)

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

Chert (specifically Jasper or Flint)

Cryptocrystalline Quartz (SiO2)

Chert (Jasper variety) (Cryptocrystalline quartz (SiO2)) — sedimentary

Chert (Jasper variety)

Cryptocrystalline quartz (SiO2)

Chert (specifically Flint) (Cryptocrystalline Quartz (SiO2)) — sedimentary

Chert (specifically Flint)

Cryptocrystalline Quartz (SiO2)

Chert (varietal: Flint Pitted Pebble) (Cryptocrystalline Quartz (SiO2)) — sedimentary

Chert (varietal: Flint Pitted Pebble)

Cryptocrystalline Quartz (SiO2)

Pink Dyed Agate (Silicon Dioxide (SiO2) with artificial pigment) — sedimentary

Pink Dyed Agate

Silicon Dioxide (SiO2) with artificial pigment