Rock Identifier

Category

Mineral And Sedimentary

Browse mineral and sedimentary specimens identified by the Rock Identifier community.

Learn about Mineral And Sedimentary in the encyclopedia

Coal

Coal

Conglomerate

Conglomerate

Quartzite Sandstone

Quartzite Sandstone

Glauconite

Glauconite

Breccia

Breccia

Ironstone

Ironstone

Hutcheonite

Hutcheonite

Halite

Halite

Sperrylite

Sperrylite

Baddeleyite

Baddeleyite

Anatase

Anatase

Brookite

Brookite

Agate Geode with Quartz Druzy (Cryptocrystalline Quartz (SiO2)) — sedimentary

Agate Geode with Quartz Druzy

Cryptocrystalline Quartz (SiO2)

Septarian Nodule Geode (Septarian concretions (composed of Calcite, Aragonite, and Limestone)) — sedimentary

Septarian Nodule Geode

Septarian concretions (composed of Calcite, Aragonite, and Limestone)

Sandstone (Arenite (primarily Quartz Arenite)) — sedimentary

Sandstone

Arenite (primarily Quartz Arenite)

Fancy Jasper (Silicon Dioxide (SiO2) with iron and organic inclusions) — sedimentary

Fancy Jasper

Silicon Dioxide (SiO2) with iron and organic inclusions

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

Tree Agate

Silicon Dioxide (SiO2) - Dendritic Agate/Chalcedony

Dendritic Agate (also known as Dendritic Siltstone or Mudstone) (Silicon Dioxide with Manganese/Iron Oxide inclusions (SiO2 + MnO2)) — sedimentary

Dendritic Agate (also known as Dendritic Siltstone or Mudstone)

Silicon Dioxide with Manganese/Iron Oxide inclusions (SiO2 + MnO2)

Chert (Chert (SiO2)) — sedimentary

Chert

Chert (SiO2)

Sandstone (with Iron Staining) (Clastic sedimentary rock (High Silica / Iron Oxide)) — sedimentary

Sandstone (with Iron Staining)

Clastic sedimentary rock (High Silica / Iron Oxide)

Blue Chalcedony (Cryptocrystalline Silicon Dioxide (SiO2)) — mineral

Blue Chalcedony

Cryptocrystalline Silicon Dioxide (SiO2)

Calcite (Calcium Carbonate (CaCO3)) — mineral

Calcite

Calcium Carbonate (CaCO3)

Sandstone (Arenite (SiO2 with various cementation agents)) — sedimentary

Sandstone

Arenite (SiO2 with various cementation agents)

Petrified Wood (Silicified Wood (SiO2)) — sedimentary

Petrified Wood

Silicified Wood (SiO2)

Hag Stone (Perforated Sedimentary Rock (typically Limestone or Sandstone)) — sedimentary

Hag Stone

Perforated Sedimentary Rock (typically Limestone or Sandstone)

Fossilized Shark Tooth (Eocene Lamniformes (Mackerel Shark clade)) — fossil

Fossilized Shark Tooth

Eocene Lamniformes (Mackerel Shark clade)

Chert with Quartz Veining (Silicon Dioxide (SiO2)) — sedimentary

Chert with Quartz Veining

Silicon Dioxide (SiO2)

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

Quartz (Druzy)

Silicon Dioxide (SiO2)

Red Sandstone (Arenite (primarily Quartz with Iron Oxide coating)) — sedimentary

Red Sandstone

Arenite (primarily Quartz with Iron Oxide coating)

Chert (Banded) (Microcrystalline Quartz (SiO2)) — sedimentary

Chert (Banded)

Microcrystalline Quartz (SiO2)

Banded Gneiss (Gneiss) — metamorphic

Banded Gneiss

Gneiss

Sandstone (Quartz Arenite) (Clastic Sedimentary Rock - Quartz Arenite) — sedimentary

Sandstone (Quartz Arenite)

Clastic Sedimentary Rock - Quartz Arenite

Dalmatian Jasper (Dalmatian Stone (comprised of Feldspar, Quartz, and Arfvedsonite)) — igneous

Dalmatian Jasper

Dalmatian Stone (comprised of Feldspar, Quartz, and Arfvedsonite)

Banded Chert (Cryptocrystalline Quartz (SiO2)) — sedimentary

Banded Chert

Cryptocrystalline Quartz (SiO2)

Sandstone Concretion (Clastic Sedimentary Concretion (SiO2 with Iron Oxide)) — sedimentary

Sandstone Concretion

Clastic Sedimentary Concretion (SiO2 with Iron Oxide)

Pink Granite (Phaneritic Plutonic Felsic Igneous Rock (Granite)) — igneous

Pink Granite

Phaneritic Plutonic Felsic Igneous Rock (Granite)

Fossilized Shark Tooth in Matrix (Otodus sp. (likely Otodus obliquus)) — sedimentary

Fossilized Shark Tooth in Matrix

Otodus sp. (likely Otodus obliquus)

Pyrite (Iron Disulfide (FeS2)) — mineral

Pyrite

Iron Disulfide (FeS2)

Jasper (Jasper (Silicon Dioxide, SiO2)) — Mineral

Jasper

Jasper (Silicon Dioxide, SiO2)

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

Botryoidal Chalcedony (Agate)

Silicon Dioxide (SiO2)

Pyrite (Iron Sulfide (FeS2)) — mineral

Pyrite

Iron Sulfide (FeS2)

Red Hematite (Iron(III) oxide (Fe2O3)) — mineral

Red Hematite

Iron(III) oxide (Fe2O3)

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

Quartz Geode Fragment

Silicon Dioxide (SiO2)

Chalcedony (Yellow/Honey variety) (Microcrystalline Quartz (SiO2)) — mineral

Chalcedony (Yellow/Honey variety)

Microcrystalline Quartz (SiO2)

Botryoidal Chalcedony (Silicon Dioxide (SiO2)) — Mineral

Botryoidal Chalcedony

Silicon Dioxide (SiO2)

Green Fluorite (Fluorite (Calcium Fluoride, CaF2)) — mineral

Green Fluorite

Fluorite (Calcium Fluoride, CaF2)

Quartz Geode (Silicon Dioxide (SiO2)) — mineral

Quartz Geode

Silicon Dioxide (SiO2)

Calcite (Calcium Carbonate (CaCO3)) — mineral

Calcite

Calcium Carbonate (CaCO3)

Magnetite / Ironstone (Iron(II,III) oxide (Fe3O4)) — mineral

Magnetite / Ironstone

Iron(II,III) oxide (Fe3O4)

Aragonite Star Cluster (Aragonite (Calcium Carbonate - CaCO3)) — mineral

Aragonite Star Cluster

Aragonite (Calcium Carbonate - CaCO3)

Ferruginous Quartz (Silicon Dioxide with Hematite/Limonite inclusions (SiO2 + Fe2O3)) — mineral

Ferruginous Quartz

Silicon Dioxide with Hematite/Limonite inclusions (SiO2 + Fe2O3)

Pyrite (Iron Disulfide (FeS2)) — mineral

Pyrite

Iron Disulfide (FeS2)

Pyrite (Iron Disulfide (FeS2)) — mineral

Pyrite

Iron Disulfide (FeS2)

Hematite (Iron Ore) (Hematite (Fe2O3)) — mineral

Hematite (Iron Ore)

Hematite (Fe2O3)