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.

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

Chert (varieties include Flint and Jasper)

Silicon Dioxide (SiO2)

Green Aventurine (Aventurine Quartz (SiO2 with inclusions of Fuchsite)) — mineral

Green Aventurine

Aventurine Quartz (SiO2 with inclusions of Fuchsite)

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

Clear Quartz (Rock Crystal)

Silicon Dioxide (SiO2)

Sandstone (Arenite (SiO2 principal component)) — sedimentary

Sandstone

Arenite (SiO2 principal component)

Fancy Jasper (Silicon Dioxide (SiO2) with mineral inclusions) — sedimentary

Fancy Jasper

Silicon Dioxide (SiO2) with mineral inclusions

Carnelian (Carnelian (Silicon Dioxide, SiO2)) — mineral

Carnelian

Carnelian (Silicon Dioxide, SiO2)

Petrified Wood (Silicified Wood (SiO2)) — mineral

Petrified Wood

Silicified Wood (SiO2)

Sandstone (Arenite) — sedimentary

Sandstone

Arenite

Sandstone (with potential mineral inclusions) (Clastic sedimentary rock (primarily Quartz, SiO2)) — sedimentary

Sandstone (with potential mineral inclusions)

Clastic sedimentary rock (primarily Quartz, SiO2)

Sandstone (Arenite (SiO2 based)) — sedimentary

Sandstone

Arenite (SiO2 based)

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

Yellow Jasper

Silicon dioxide (SiO2) with iron oxide inclusions

Banded Agate (Cryptocrystalline variety of Quartz (SiO2)) — mineral

Banded Agate

Cryptocrystalline variety of Quartz (SiO2)

Quartzite (Quartzite (primarily SiO2)) — metamorphic

Quartzite

Quartzite (primarily SiO2)

Sandstone (Yellow/Tan) (Clastic sedimentary rock (primarily SiO2 with iron oxide staining)) — sedimentary

Sandstone (Yellow/Tan)

Clastic sedimentary rock (primarily SiO2 with iron oxide staining)

Quartz Geode (Silicon Dioxide (SiO2)) — mineral

Quartz Geode

Silicon Dioxide (SiO2)

Conglomerate (Conglomerate (clastic sedimentary rock)) — sedimentary

Conglomerate

Conglomerate (clastic sedimentary rock)

Conglomerate (Conglomerate (clastic sedimentary rock)) — sedimentary

Conglomerate

Conglomerate (clastic sedimentary rock)

Sandstone (Ferruginous) (Arenite (with iron oxide cement)) — sedimentary

Sandstone (Ferruginous)

Arenite (with iron oxide cement)

Agate (Silicon dioxide (SiO2)) — mineral

Agate

Silicon dioxide (SiO2)

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

Red Jasper (Polished)

Silicon Dioxide (SiO2) with Hematite inclusions

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

Clear Quartz

Quartz (Silicon Dioxide, SiO2)

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

Clear Quartz

Quartz (Silicon Dioxide, SiO2)

Arkosic Sandstone (or Conglomeritic Sandstone fragment) (Arkose (rich in feldspar)) — sedimentary

Arkosic Sandstone (or Conglomeritic Sandstone fragment)

Arkose (rich in feldspar)

Limestone (Calcareous sedimentary rock (primarily CaCO3)) — sedimentary

Limestone

Calcareous sedimentary rock (primarily CaCO3)

Limestone (Sedimentary Calcium Carbonate (CaCO3)) — sedimentary

Limestone

Sedimentary Calcium Carbonate (CaCO3)

Sandstone (Ferruginous) (Arenite (with high iron oxide content)) — sedimentary

Sandstone (Ferruginous)

Arenite (with high iron oxide content)

Dalmatian Stone (Dalmatian Jasper) (Dalmatian Stone (A variety of Perthite / Aplite)) — Igneous

Dalmatian Stone (Dalmatian Jasper)

Dalmatian Stone (A variety of Perthite / Aplite)

Red Jasper (Jasper (Silicate mineral - SiO2)) — sedimentary

Red Jasper

Jasper (Silicate mineral - SiO2)

Travertine (Calcareous Tufa (CaCO3)) — sedimentary

Travertine

Calcareous Tufa (CaCO3)

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

Picture Jasper

Silicon Dioxide (SiO2) with iron oxide inclusions

Granite (Granite (a broadly defined plutonic igneous rock, often more specifically classified as quartz monzonite or granodiorite based on precise mineral percentages)) — igneous

Granite

Granite (a broadly defined plutonic igneous rock, often more specifically classified as quartz monzonite or granodiorite based on precise mineral percentages)

River Stone (likely Basalt or Chert) (Silicon Dioxide (SiO2) for chert or Mafic Extrusive Rock for basalt) — igneous/sedimentary

River Stone (likely Basalt or Chert)

Silicon Dioxide (SiO2) for chert or Mafic Extrusive Rock for basalt

igneous/sedimentary

Limestone (Calcium Carbonate (CaCO3)) — sedimentary

Limestone

Calcium Carbonate (CaCO3)

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

Chert (Yellow Jasper)

Silicon Dioxide (SiO2)

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

Red Jasper (Chert)

Silicon dioxide (SiO2) with iron oxide inclusions

Yellow Jasper / Chert (Silicon Dioxide (SiO2) with Goethite or Limonite inclusions) — sedimentary

Yellow Jasper / Chert

Silicon Dioxide (SiO2) with Goethite or Limonite inclusions

Chert / Flint with Cortex (Silicon Dioxide (SiO2)) — sedimentary

Chert / Flint with Cortex

Silicon Dioxide (SiO2)

Jasper (Red/Brown Variety) (Jasper (Microcrystalline Quartz, SiO2)) — sedimentary

Jasper (Red/Brown Variety)

Jasper (Microcrystalline Quartz, SiO2)

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

Chert (Jasper variety)

Silicon Dioxide (SiO2)

Granitic Sand (Detrital sediment (predominantly Quartz, Feldspar, and Mica)) — sedimentary

Granitic Sand

Detrital sediment (predominantly Quartz, Feldspar, and Mica)

Quartz (likely tumbled or naturally water-worn) (Quartz (SiO₂ - Silicon Dioxide)) — Mineral

Quartz (likely tumbled or naturally water-worn)

Quartz (SiO₂ - Silicon Dioxide)

Sedimentary Breccia (Breccia (Clastic Sedimentary Rock)) — sedimentary

Sedimentary Breccia

Breccia (Clastic Sedimentary Rock)