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

Sandstone (Quartzite-rich) (Clastic sedimentary rock (SiO2 primary)) — sedimentary

Sandstone (Quartzite-rich)

Clastic sedimentary rock (SiO2 primary)

Clear Quartz (Rock Crystal) (Silicon Dioxide (SiO2)) — mineral

Clear Quartz (Rock Crystal)

Silicon Dioxide (SiO2)

Sandstone (with man-made markings) (Arenite (composed primarily of Quartz, SiO2)) — sedimentary

Sandstone (with man-made markings)

Arenite (composed primarily of Quartz, SiO2)

Quartzite (Quartzite (mainly SiO2)) — metamorphic

Quartzite

Quartzite (mainly SiO2)

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

Chert (Jasper variety)

Silicon Dioxide (SiO2)

Chert (River Siltstone/Flint) (Chert (SiO2)) — sedimentary

Chert (River Siltstone/Flint)

Chert (SiO2)

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

Chert (Black Chert or Flint)

Silicon Dioxide (SiO2)

Mudstone (Lutylite (group of fine-grained sedimentary rocks)) — sedimentary

Mudstone

Lutylite (group of fine-grained sedimentary rocks)

Crazy Lace Agate (Agate (Chalcedony - SiO2)) — Mineral

Crazy Lace Agate

Agate (Chalcedony - SiO2)

River Rock (Quartzite/Chert) (Quartzite (primarily SiO2)) — metamorphic

River Rock (Quartzite/Chert)

Quartzite (primarily SiO2)

Quartzite (Quartzite (primarily SiO2)) — metamorphic

Quartzite

Quartzite (primarily SiO2)

Gray Agate (Cryptocrystalline Quartz (SiO2)) — mineral

Gray Agate

Cryptocrystalline Quartz (SiO2)

Chert (with Iron Staining) (Chert (SiO2)) — sedimentary

Chert (with Iron Staining)

Chert (SiO2)

Chert (Flint) (Chert (SiO2)) — sedimentary

Chert (Flint)

Chert (SiO2)

Banded Iron Formation (BIF) (Banded Iron Formation (SiO2 + Fe2O3)) — sedimentary

Banded Iron Formation (BIF)

Banded Iron Formation (SiO2 + Fe2O3)

Chert (Chert (SiO2)) — sedimentary

Chert

Chert (SiO2)

Sandstone (with secondary weathering/concretion) (Arenite (composed primarily of Quartz, SiO2)) — sedimentary

Sandstone (with secondary weathering/concretion)

Arenite (composed primarily of Quartz, SiO2)

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

Flint (Chert)

Cryptocrystalline Quartz (SiO2)

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

Flint (Chert)

Cryptocrystalline Quartz (SiO2)

Quartzite (Quartzite (primarily SiO2)) — metamorphic

Quartzite

Quartzite (primarily SiO2)

Quartzite (Quartzite (primarily SiO2)) — metamorphic

Quartzite

Quartzite (primarily SiO2)

Dalmatian Jasper / Dalmatian Stone (Peralkaline Rock (Silicon Dioxide with Amphibole inclusions)) — igneous

Dalmatian Jasper / Dalmatian Stone

Peralkaline Rock (Silicon Dioxide with Amphibole inclusions)

Quartz Vein in Sandstone (Hydrothermal Quartz (SiO2) in Arenite) — sedimentary

Quartz Vein in Sandstone

Hydrothermal Quartz (SiO2) in Arenite

Chert (Nodule) (Crystalline Silicon Dioxide (SiO2)) — sedimentary

Chert (Nodule)

Crystalline Silicon Dioxide (SiO2)

Grape Agate (Botryoidal Amethystine Chalcedony (SiO2)) — mineral

Grape Agate

Botryoidal Amethystine Chalcedony (SiO2)

Druzy Quartz on Matrix (Silicon Dioxide (SiO2)) — mineral

Druzy Quartz on Matrix

Silicon Dioxide (SiO2)

Quartzite (Quartzite (SiO2)) — metamorphic

Quartzite

Quartzite (SiO2)

Clear Quartz (Rock Crystal) (Silicon Dioxide (SiO2)) — mineral

Clear Quartz (Rock Crystal)

Silicon Dioxide (SiO2)

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

Chert (Jasper variety)

Silicon Dioxide (SiO2)

Chert / Flint Nodules (Chert (Cryptocrystalline variety of Quartz, SiO2)) — sedimentary

Chert / Flint Nodules

Chert (Cryptocrystalline variety of Quartz, SiO2)

Chert (specifically Chalcedony/Flint variant) (Silicon Dioxide (SiO2)) — sedimentary

Chert (specifically Chalcedony/Flint variant)

Silicon Dioxide (SiO2)

Quartzite (Quartzite (primarily SiO2)) — metamorphic

Quartzite

Quartzite (primarily SiO2)

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

Chert (Nodule)

Silicon Dioxide (SiO2)

Yellow Quartz River Pebble (Silicon Dioxide (SiO2)) — mineral

Yellow Quartz River Pebble

Silicon Dioxide (SiO2)

Chalcedony with Druzy Quartz Geode (Silicon Dioxide (SiO2)) — mineral

Chalcedony with Druzy Quartz Geode

Silicon Dioxide (SiO2)

Chert (Iron-stained) (Chert (SiO2)) — sedimentary

Chert (Iron-stained)

Chert (SiO2)

Green Quartz (Prasiolite/Adventurine) (Silicon Dioxide with inclusions (SiO2)) — mineral

Green Quartz (Prasiolite/Adventurine)

Silicon Dioxide with inclusions (SiO2)

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

Chert (Flint)

Chert (Silicon Dioxide, SiO2)

Quartz Pebble (Iron-stained) (Silicon Dioxide (SiO2)) — mineral

Quartz Pebble (Iron-stained)

Silicon Dioxide (SiO2)

Quartzite (Quartzite (primarily SiO2)) — metamorphic

Quartzite

Quartzite (primarily SiO2)

Quartz or possibly Jasper/Chert. Looks like a tumbled or water-worn stone. (SiO2 (Silicon Dioxide)) — Mineral or Sedimentary (if chert)

Quartz or possibly Jasper/Chert. Looks like a tumbled or water-worn stone.

SiO2 (Silicon Dioxide)

Mineral or Sedimentary (if chert)

Quartzite (Quartzite (SiO2)) — metamorphic

Quartzite

Quartzite (SiO2)