Rock Identifier

Category

Sedimentary Rock (Technically Chert, A Microcrystalline Quartz)

Browse sedimentary rock (technically chert, a microcrystalline quartz) specimens identified by the Rock Identifier community.

Learn about Sedimentary Rock (Technically Chert, A Microcrystalline Quartz) in the encyclopedia

Chert

Chert

Quartz Schist

Quartz Schist

Clear Quartz

Clear Quartz

Tourmalinated Quartz

Tourmalinated Quartz

Rutilated Quartz

Rutilated Quartz

Asphalt Rock

Asphalt Rock

Rock Gypsum

Rock Gypsum

Quartz-mica Schist

Quartz-mica Schist

Porcelanite

Porcelanite

Radiolarite

Radiolarite

Flint

Flint

Breccia

Breccia

Shale (Fissile mudstone (rich in clay minerals and quartz)) — sedimentary

Shale

Fissile mudstone (rich in clay minerals and quartz)

Chert (Jasper-rich River Cobble) (Cryptocrystalline Quartz (SiO2)) — sedimentary

Chert (Jasper-rich River Cobble)

Cryptocrystalline Quartz (SiO2)

Chert Nodule (with Ironstone Cortex) (Microcrystalline Silica (SiO2)) — sedimentary

Chert Nodule (with Ironstone Cortex)

Microcrystalline Silica (SiO2)

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

Chert (Jasper variety)

Silicon Dioxide (SiO2)

Geode (unopened) (SiO2 - Chert-shelled concretion (mostly Quartz)) — sedimentary

Geode (unopened)

SiO2 - Chert-shelled concretion (mostly Quartz)

Red Jasper with Quartz (Microcrystalline Quartz (SiO2) with Hematite inclusions) — sedimentary

Red Jasper with Quartz

Microcrystalline Quartz (SiO2) with Hematite inclusions

Jasper with Quartz inclusions (Silicon Dioxide (SiO2) with varying mineral impurities) — sedimentary

Jasper with Quartz inclusions

Silicon Dioxide (SiO2) with varying mineral impurities

Whetstone (Arkansas Stone) (Novaculite (SiO2)) — sedimentary

Whetstone (Arkansas Stone)

Novaculite (SiO2)

Pebble (likely Quartzite or Chert) (Clastic Sediment, potentially composed of SiO₂ (Quartz)) — Mineral, Sediment

Pebble (likely Quartzite or Chert)

Clastic Sediment, potentially composed of SiO₂ (Quartz)

Mineral, Sediment

Chert (Jasper variation) (Silicon Dioxide (SiO2) - Microcrystalline Quartz) — sedimentary

Chert (Jasper variation)

Silicon Dioxide (SiO2) - Microcrystalline Quartz

Chert (varieties include Flint and Jasper) (Silicon Dioxide (SiO2) - Microcrystalline Quartz) — sedimentary

Chert (varieties include Flint and Jasper)

Silicon Dioxide (SiO2) - Microcrystalline Quartz

Chert (Jasper-bearing) (Silicon dioxide (SiO2) - Microcrystalline Quartz) — sedimentary

Chert (Jasper-bearing)

Silicon dioxide (SiO2) - Microcrystalline Quartz

Chert (Jasper variety) (Silicon Dioxide (SiO2) - Microcrystalline Quartz) — sedimentary

Chert (Jasper variety)

Silicon Dioxide (SiO2) - Microcrystalline Quartz

Chert Fossil (Pebble) (Microcrystalline Quartz (SiO2) with biogenic inclusions) — sedimentary

Chert Fossil (Pebble)

Microcrystalline Quartz (SiO2) with biogenic inclusions

Chert (Flint variety) (Silicon dioxide (SiO2) - Microcrystalline Quartz) — sedimentary

Chert (Flint variety)

Silicon dioxide (SiO2) - Microcrystalline Quartz

Chert (specifically Yellow Jasper variety) (Silicon Dioxide (SiO2) - Microcrystalline Quartz) — sedimentary

Chert (specifically Yellow Jasper variety)

Silicon Dioxide (SiO2) - Microcrystalline Quartz

Chert (varieties include Flint and Jasper) (Silicon Dioxide (SiO2) / Microcrystalline Quartz) — sedimentary

Chert (varieties include Flint and Jasper)

Silicon Dioxide (SiO2) / Microcrystalline Quartz

Chert (with Limestone/Marble traces) (Silicon Dioxide (SiO2) / Microcrystalline Quartz) — sedimentary

Chert (with Limestone/Marble traces)

Silicon Dioxide (SiO2) / Microcrystalline Quartz

Geode (Unopened) (Silica-lined Vug (primarily SiO2)) — sedimentary

Geode (Unopened)

Silica-lined Vug (primarily SiO2)

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

Chert / Flint Nodules

Cryptocrystalline Quartz (SiO2)

Cherry Quartz (SiO2 (Silicon Dioxide with iron-rich inclusions/dye)) — mineral

Cherry Quartz

SiO2 (Silicon Dioxide with iron-rich inclusions/dye)

Quartz (likely milky/rose quartz variety) (Quartz (SiO2 - Silicon Dioxide)) — Mineral

Quartz (likely milky/rose quartz variety)

Quartz (SiO2 - Silicon Dioxide)

Chert (Jasper/Flint variety) (Silicon dioxide (SiO2) - Microcrystalline Quartz) — sedimentary

Chert (Jasper/Flint variety)

Silicon dioxide (SiO2) - Microcrystalline Quartz

Yellow Quartz (Chalcedony or Agate) (Silicon Dioxide (SiO2)) — mineral

Yellow Quartz (Chalcedony or Agate)

Silicon Dioxide (SiO2)

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

Chert (Flint)

Silicon Dioxide (SiO2)

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

Chert (Jasper/Flint variety)

Silicon dioxide (SiO2)

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

Brecciated Jasper

Silicon Dioxide (SiO2) with Hematite impurities

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

Chert (Jasper variety)

Silicon Dioxide (SiO2)

Chert (variously known as Flint or Jasper) (Silicon Dioxide (SiO2) - Microcrystalline Quartz) — sedimentary

Chert (variously known as Flint or Jasper)

Silicon Dioxide (SiO2) - Microcrystalline Quartz

Chert (Jasper) (Microcrystalline Quartz (SiO2) with iron oxide inclusions) — sedimentary

Chert (Jasper)

Microcrystalline Quartz (SiO2) with iron oxide inclusions

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

Yellow Chert (Jasper)

Cryptocrystalline Quartz (SiO2)

Chert (Jasper variation) (Silicon dioxide (SiO2) - Microcrystalline Quartz) — sedimentary

Chert (Jasper variation)

Silicon dioxide (SiO2) - Microcrystalline Quartz

Trace Fossil (Lichenandites or Rhynie Chert Chert with Microfossils) (Trace fossil in microcrystalline quartz (SiO2)) — fossil

Trace Fossil (Lichenandites or Rhynie Chert Chert with Microfossils)

Trace fossil in microcrystalline quartz (SiO2)

Zebra Stone (Silicified Siltstone) (Silicified Siltstone with Quartz/Kaolinite inclusions) — sedimentary

Zebra Stone (Silicified Siltstone)

Silicified Siltstone with Quartz/Kaolinite inclusions

Banded Jasper (possibly "Picture Jasper") (Jasper (a microcrystalline variety of Quartz / Silicon Dioxide - SiO2)) — Sedimentary rock (specifically a chemical sedimentary rock, or a chert if considered purely mineral aggregate)

Banded Jasper (possibly "Picture Jasper")

Jasper (a microcrystalline variety of Quartz / Silicon Dioxide - SiO2)

Sedimentary rock (specifically a chemical sedimentary rock, or a chert if considered purely mineral aggregate)

Chert (Jasper) (Microcrystalline Quartz (SiO2) with Iron Oxide inclusions) — sedimentary

Chert (Jasper)

Microcrystalline Quartz (SiO2) with Iron Oxide inclusions

Agate Nodule / Weathered Chert (SiO2 (Silicon Dioxide - Microcrystalline Quartz)) — Sedimentary / Mineral

Agate Nodule / Weathered Chert

SiO2 (Silicon Dioxide - Microcrystalline Quartz)

Sedimentary / Mineral

Zebra Jasper (Impure variety of Silica (SiO2)) — sedimentary

Zebra Jasper

Impure variety of Silica (SiO2)

Chert (Nodule) (Silicon dioxide (SiO2) - Cryptocrystalline Quartz) — sedimentary

Chert (Nodule)

Silicon dioxide (SiO2) - Cryptocrystalline Quartz

Quartzite and Sandstone Pebbles (Silicon dioxide (SiO2)) — metamorphic and sedimentary

Quartzite and Sandstone Pebbles

Silicon dioxide (SiO2)

metamorphic and sedimentary

Chert (often called Flint or Agate nodule) (Cryptocrystalline Quartz (SiO2)) — sedimentary

Chert (often called Flint or Agate nodule)

Cryptocrystalline Quartz (SiO2)

Quartz (Microcrystalline/Agate) (Silicon Dioxide (SiO2)) — mineral

Quartz (Microcrystalline/Agate)

Silicon Dioxide (SiO2)