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)

White Jade / White Chalcedony (Nephrite Jade (Ca2(Mg,Fe)5Si8O22(OH)2) or Chalcedony (SiO2)) — Mineral

White Jade / White Chalcedony

Nephrite Jade (Ca2(Mg,Fe)5Si8O22(OH)2) or Chalcedony (SiO2)

Quartz (River Pebble) and Chert/Jasper (Silicon Dioxide (SiO2)) — mineral

Quartz (River Pebble) and Chert/Jasper

Silicon Dioxide (SiO2)

Sandstone (Sandstone (clastic sedimentary rock)) — Rock

Sandstone

Sandstone (clastic sedimentary rock)

Indigo Gabbro (Gabbro (composed of plagioclase feldspar, pyroxene, and olivine)) — igneous

Indigo Gabbro

Gabbro (composed of plagioclase feldspar, pyroxene, and olivine)

Chert (Jasper/Brown Chert) (Silicon Dioxide (SiO2)) — sedimentary

Chert (Jasper/Brown Chert)

Silicon Dioxide (SiO2)

Quartz-encrusted Matrix (Silicon Dioxide (SiO2) with Ferruginous Sandstone) — sedimentary

Quartz-encrusted Matrix

Silicon Dioxide (SiO2) with Ferruginous Sandstone

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

Chert (Flint variety)

Chert (Cryptocrystalline Quartz, SiO2)

Dalmatian Stone (Dalmatian Jasper (a misnomer) / Perthitic Feldspar Rock) — igneous

Dalmatian Stone

Dalmatian Jasper (a misnomer) / Perthitic Feldspar Rock

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

Chert / Flint

Chert (Cryptocrystalline Quartz, SiO2)

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

Green Chert

Chert (Cryptocrystalline Quartz, SiO2)

Banded Agate with Drusy Quartz (Cryptocrystalline Quartz (SiO2) with macrocrystalline Quartz) — mineral

Banded Agate with Drusy Quartz

Cryptocrystalline Quartz (SiO2) with macrocrystalline Quartz

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

Chert (Agatized)

Silicon dioxide (SiO2)

Quartzite (Quartzite (primarily SiO2)) — metamorphic

Quartzite

Quartzite (primarily SiO2)

Tree Agate (Silicon Dioxide (SiO2) - Dendritic Agate/Chalcedony) — sedimentary

Tree Agate

Silicon Dioxide (SiO2) - Dendritic Agate/Chalcedony

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

Chert (Flint)

Silicon Dioxide (SiO2)

Banded Chert (Silicon Dioxide (SiO2)) — sedimentary

Banded Chert

Silicon Dioxide (SiO2)

Quartzite (Quartzite (SiO2)) — metamorphic

Quartzite

Quartzite (SiO2)

Quartzite (Milky) (Quartzite (SiO2)) — metamorphic

Quartzite (Milky)

Quartzite (SiO2)

Graywacke with Quartz Veins (Argillaceous Sandstone (Graywacke)) — sedimentary

Graywacke with Quartz Veins

Argillaceous Sandstone (Graywacke)

Quartz Vein in Host Rock (Likely Slate or Shale) (Hydrothermal Quartz (SiO2) in Pelitic host rock) — metamorphic

Quartz Vein in Host Rock (Likely Slate or Shale)

Hydrothermal Quartz (SiO2) in Pelitic host rock

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

Quartz (Druzy)

Silicon Dioxide (SiO2)

Herkimer Diamond (Quartz (Silica - SiO2)) — mineral

Herkimer Diamond

Quartz (Silica - SiO2)

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

Chert (Flint nodules)

Chert (SiO2)

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

Red Jasper

Silicon Dioxide (SiO2) with iron oxide inclusions

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

Chert (Flint)

Chert (SiO2)

Brecciated Chert (Silicon Dioxide (SiO2)) — sedimentary

Brecciated Chert

Silicon Dioxide (SiO2)

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

Quartz Geode

Silicon Dioxide (SiO2) within a geode

Geode or Concretion (Silica-filled nodule (likely SiO2)) — sedimentary

Geode or Concretion

Silica-filled nodule (likely SiO2)

River Pebble (Quartz-rich) (Silicon Dioxide (SiO2) with various inclusions) — sedimentary

River Pebble (Quartz-rich)

Silicon Dioxide (SiO2) with various inclusions

Puddingstone (Conglomerate (Jasper Conglomerate)) — sedimentary

Puddingstone

Conglomerate (Jasper Conglomerate)

Quartzite (Quartzite (composed primarily of Silica, SiO2)) — metamorphic

Quartzite

Quartzite (composed primarily of Silica, SiO2)

Milky Quartz (Silicon Dioxide (SiO2)) — mineral

Milky Quartz

Silicon Dioxide (SiO2)

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

Quartz (Rock Crystal)

Silicon Dioxide (SiO2)

Quartz Druzy (Geode Fragment) (Silicon Dioxide (SiO2)) — mineral

Quartz Druzy (Geode Fragment)

Silicon Dioxide (SiO2)

Quartzite (Quartzite (SiO2)) — metamorphic

Quartzite

Quartzite (SiO2)

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

Chert (Flint)

Chert (SiO2)

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

Chert / Flint

Chert (Cryptocrystalline Quartz, SiO2)

Chert Nodule in Limestone (Silicon Dioxide (SiO2) in Calcium Carbonate (CaCO3)) — sedimentary

Chert Nodule in Limestone

Silicon Dioxide (SiO2) in Calcium Carbonate (CaCO3)

Red Jasper (Jasper (Silicon Dioxide with iron oxide inclusions), SiO2) — mineral

Red Jasper

Jasper (Silicon Dioxide with iron oxide inclusions), SiO2

Quartzite (Quartzite (SiO2)) — metamorphic

Quartzite

Quartzite (SiO2)

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

Chert (Flint)

Chert (Cryptocrystalline Quartz, SiO2)