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

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

Chert (Flint)

Silicon Dioxide (SiO2)

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

Chert (Nodule)

Microcrystalline Silica (SiO2)

Sandstone (Arenite) — sedimentary

Sandstone

Arenite

Slag (Industrial Byproduct) (Anthropogenic Vitreous Silicate material) — igneous

Slag (Industrial Byproduct)

Anthropogenic Vitreous Silicate material

Agate / Banded Chalcedony (Agate (Silicon Dioxide / SiO2)) — mineral

Agate / Banded Chalcedony

Agate (Silicon Dioxide / SiO2)

Chert (v. Flint) (Sedimentary Cryptocrystalline Quartz (SiO2)) — sedimentary

Chert (v. Flint)

Sedimentary Cryptocrystalline Quartz (SiO2)

Quartz Vein in Host Rock (Breccia/Rhyolite) (Silicon Dioxide (SiO2) with matrix) — Mineral in Igneous/Sedimentary host

Quartz Vein in Host Rock (Breccia/Rhyolite)

Silicon Dioxide (SiO2) with matrix

Mineral in Igneous/Sedimentary host

Sandstone (with Iron Staining) (Clastic sedimentary rock (primarily SiO2 with Fe2O3 oxides)) — sedimentary

Sandstone (with Iron Staining)

Clastic sedimentary rock (primarily SiO2 with Fe2O3 oxides)

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

Chert (Jasper/Flint variety)

Silicon dioxide (SiO2)

Quartzite (Quartzite (SiO2)) — metamorphic

Quartzite

Quartzite (SiO2)

Sandstone (Weathered Cobble) (Clastic sedimentary rock (primarily SiO2)) — sedimentary

Sandstone (Weathered Cobble)

Clastic sedimentary rock (primarily SiO2)

Clear Quartz (Silicon Dioxide (SiO2)) — mineral

Clear Quartz

Silicon Dioxide (SiO2)

Dyed Quartzite (Metamorphosed Quartz (SiO2) with synthetic pigment) — metamorphic

Dyed Quartzite

Metamorphosed Quartz (SiO2) with synthetic pigment

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

Chert (Jasper)

Cryptocrystalline Quartz (SiO2)

Quartz Pebble (possibly Chalcedony or Chert) (Silicon Dioxide (SiO2)) — mineral

Quartz Pebble (possibly Chalcedony or Chert)

Silicon Dioxide (SiO2)

Petrified Wood (Silicified Wood (primarily Quartz/Chalcedony, formula SiO2)) — sedimentary

Petrified Wood

Silicified Wood (primarily Quartz/Chalcedony, formula SiO2)

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

Clear Quartz (Rock Crystal)

Silicon Dioxide (SiO2)

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

Clear Quartz Crystal

Silicon Dioxide (SiO2)

Clear Quartz (Silicon Dioxide (SiO2)) — mineral

Clear Quartz

Silicon Dioxide (SiO2)

Grey Chalcedony (Tumbled Moon) (Microcrystalline Quartz (SiO2)) — mineral

Grey Chalcedony (Tumbled Moon)

Microcrystalline Quartz (SiO2)

Yellow Quartzite (River Stone) (Quartzite (primarily SiO2)) — metamorphic

Yellow Quartzite (River Stone)

Quartzite (primarily SiO2)

Agate (Chalcedony Variation) (Silicon Dioxide (SiO2)) — mineral

Agate (Chalcedony Variation)

Silicon Dioxide (SiO2)

Milky Quartz Vein in Host Rock (Silicon Dioxide (SiO2)) — mineral

Milky Quartz Vein in Host Rock

Silicon Dioxide (SiO2)

Quartz Geode (Silicon Dioxide (SiO2) within a geode) — mineral

Quartz Geode

Silicon Dioxide (SiO2) within a geode

Chert / Chalcedony (Agatized) (Silicon dioxide (SiO2)) — sedimentary

Chert / Chalcedony (Agatized)

Silicon dioxide (SiO2)

Quartz (Pebble) (Quartz (SiO₂)) — Mineral

Quartz (Pebble)

Quartz (SiO₂)

Blue Dyed Agate (Cryptocrystalline Quartz (SiO2)) — mineral

Blue Dyed Agate

Cryptocrystalline Quartz (SiO2)

Quartz (variety of colors) (SiO2 (Silicon Dioxide)) — Mineral

Quartz (variety of colors)

SiO2 (Silicon Dioxide)

Quartzite Pebble (Quartzite (SiO2)) — metamorphic

Quartzite Pebble

Quartzite (SiO2)

Obsidian (Obsidian (Volcanic Glass, SiO2 + impurities)) — igneous

Obsidian

Obsidian (Volcanic Glass, SiO2 + impurities)

Mahogany Obsidian (Obsidian (Volcanic Glass) with Hematite/Magnetite inclusions) — igneous

Mahogany Obsidian

Obsidian (Volcanic Glass) with Hematite/Magnetite inclusions

Quartzite Pebble (Quartzite (mostly SiO2)) — metamorphic

Quartzite Pebble

Quartzite (mostly SiO2)

Quartzite (Metamorphosed Quartz Sandstone) — metamorphic

Quartzite

Metamorphosed Quartz Sandstone

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

Chert (Nodule)

Silicon Dioxide (SiO2)

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

Banded Iron Formation (BIF)

Banded Iron Formation (Fe2O3 + SiO2)

River Stone (Sandstone or Siltstone) (Sedimentary Rock (Clastic)) — sedimentary

River Stone (Sandstone or Siltstone)

Sedimentary Rock (Clastic)

Clear Quartz (Quartz (Silicon Dioxide, SiO2)) — mineral

Clear Quartz

Quartz (Silicon Dioxide, SiO2)

Quartzite (Quartzite (SiO2)) — metamorphic

Quartzite

Quartzite (SiO2)

Red Jasper (Jasper (Silicon Dioxide based crypto-crystalline Quartz with Iron inclusions)) — sedimentary

Red Jasper

Jasper (Silicon Dioxide based crypto-crystalline Quartz with Iron inclusions)

Snowflake Obsidian (Spherulitic Obsidian (primarily SiO2 with Cristobalite inclusions)) — igneous

Snowflake Obsidian

Spherulitic Obsidian (primarily SiO2 with Cristobalite inclusions)

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

Red Jasper

Silicon Dioxide (SiO2) with Hematite inclusions

Yellow Jasper (Silicon Dioxide (SiO2)) — sedimentary

Yellow Jasper

Silicon Dioxide (SiO2)