Rock Identifier

Category

Mineral On Sedimentary

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

Learn about Mineral On Sedimentary in the encyclopedia

Coal

Conglomerate

Quartzite Sandstone

Quartzite Sandstone

Glauconite

Breccia

Hutcheonite

Halite

Ironstone

Sperrylite

Baddeleyite

Anatase

Brookite

Geode (Quartz / Chalcedony nodule) — sedimentary

Geode

Quartz / Chalcedony nodule

Pyrite in Matrix (Iron Sulfide (FeS2)) — mineral

Pyrite in Matrix

Iron Sulfide (FeS2)

Weathered sandstone or siltstone cobble (Clastic sedimentary rock, probably quartz-rich sandstone; exact identification requires testing) — sedimentary

Weathered sandstone or siltstone cobble

Clastic sedimentary rock, probably quartz-rich sandstone; exact identification requires testing

Blue apatite (likely dyed or enhanced) (Apatite group; fluorapatite, Ca5(PO4)3F, is the common blue variety) — mineral

Blue apatite (likely dyed or enhanced)

Apatite group; fluorapatite, Ca5(PO4)3F, is the common blue variety

Sandstone (Arenite (Silicon Dioxide with various mineral cements)) — sedimentary

Sandstone

Arenite (Silicon Dioxide with various mineral cements)

Orange calcite pieces on blue calcite or aragonite matrix (Calcite, CaCO₃; blue coloration likely trace-element-bearing calcite (possibly aragonite)) — mineral

Orange calcite pieces on blue calcite or aragonite matrix

Calcite, CaCO₃; blue coloration likely trace-element-bearing calcite (possibly aragonite)

Hematite (Hematite (Fe2O3)) — mineral

Hematite

Hematite (Fe2O3)

Limonite (Limonitic Sandstone) (Hydrated Iron(III) Oxide-Hydroxide ($FeO(OH)·nH_2O$)) — sedimentary

Limonite (Limonitic Sandstone)

Hydrated Iron(III) Oxide-Hydroxide ($FeO(OH)·nH_2O$)

Fossil Sea Urchin (Echinoid) (Echinoidea fossil (often replaced by silica or calcite)) — fossil

Fossil Sea Urchin (Echinoid)

Echinoidea fossil (often replaced by silica or calcite)

Sandstone (Quartzite texture) (Clastic sedimentary rock (primarily SiO2)) — sedimentary

Sandstone (Quartzite texture)

Clastic sedimentary rock (primarily SiO2)

Hematite Nodule (Hematite (Alpha Fe2O3)) — mineral

Hematite Nodule

Hematite (Alpha Fe2O3)

Iron-stained quartz (likely quartzite or quartz-rich rock) (Quartz, silicon dioxide (SiO₂), with iron-oxide staining) — mineral

Iron-stained quartz (likely quartzite or quartz-rich rock)

Quartz, silicon dioxide (SiO₂), with iron-oxide staining

Gneiss (Gneiss (Metamorphic Rock)) — metamorphic

Gneiss

Gneiss (Metamorphic Rock)

Jasper (SiO2) — mineral

Jasper

SiO2

Red jasper (Jasper, microcrystalline quartz (SiO₂) colored mainly by iron oxides) — mineral

Red jasper

Jasper, microcrystalline quartz (SiO₂) colored mainly by iron oxides

Magnetite (Lodestone) (Magnetite (Fe3O4)) — mineral

Magnetite (Lodestone)

Magnetite (Fe3O4)

Limonite (Iron Ore) (Limonite (FeO(OH)·nH2O)) — mineral

Limonite (Iron Ore)

Limonite (FeO(OH)·nH2O)

Magnetite (Magnetite (Fe3O4)) — mineral

Magnetite

Magnetite (Fe3O4)

Quartz Geode (Silicon Dioxide (SiO2)) — mineral

Quartz Geode

Silicon Dioxide (SiO2)

Quartz Geode (Silicon Dioxide (SiO2)) — mineral

Quartz Geode

Silicon Dioxide (SiO2)

Limonite (Iron Ore) (FeO(OH)·nH2O (Hydrous ferric oxide)) — mineral

Limonite (Iron Ore)

FeO(OH)·nH2O (Hydrous ferric oxide)

Coquina / Shelly Sandstone (Calcareous Sandstone / Coquina) — sedimentary

Coquina / Shelly Sandstone

Calcareous Sandstone / Coquina

Common Opal / Chert (Hydrated silica (SiO2·nH2O) or Microcrystalline Quartz (SiO2)) — mineral

Common Opal / Chert

Hydrated silica (SiO2·nH2O) or Microcrystalline Quartz (SiO2)

Sandstone (Arenite) — sedimentary

Sandstone

Arenite

Sandstone (Arenite) — sedimentary

Sandstone

Arenite

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

Quartz Geode Fragment

Silicon Dioxide (SiO2)

Sandstone (with Concretion) (Arenite / Quartzose Sandstone) — sedimentary

Sandstone (with Concretion)

Arenite / Quartzose Sandstone

Iron-rich rock or Concretion (Ironstone or Limonite concretion) — sedimentary

Iron-rich rock or Concretion

Ironstone or Limonite concretion

Sulfur (on Matrix) (Native Sulfur (S8)) — mineral

Sulfur (on Matrix)

Native Sulfur (S8)

Limonite (Ironstone) (Hydrated Iron Oxide (FeO(OH)·nH2O)) — mineral

Limonite (Ironstone)

Hydrated Iron Oxide (FeO(OH)·nH2O)

Sandstone (Banded) (Clastic Sedimentary Rock (primarily SiO2)) — sedimentary

Sandstone (Banded)

Clastic Sedimentary Rock (primarily SiO2)

Rounded river pebble (Indeterminate lithic clast; likely weathered sandstone or quartz-rich sedimentary rock) — sedimentary

Rounded river pebble

Indeterminate lithic clast; likely weathered sandstone or quartz-rich sedimentary rock

Iron-oxide-stained rock with a pale mineral vein (Likely limonite/goethite-stained quartz-bearing rock; exact identification is uncertain from the image) — sedimentary

Iron-oxide-stained rock with a pale mineral vein

Likely limonite/goethite-stained quartz-bearing rock; exact identification is uncertain from the image

Botryoidal Hematite (Iron Stone Conglomerate) (Hematite (Fe2O3) in sedimentary matrix) — sedimentary

Botryoidal Hematite (Iron Stone Conglomerate)

Hematite (Fe2O3) in sedimentary matrix

Sandstone (Ferruginous) (Arenite (Siliclastic Sedimentary Rock)) — sedimentary

Sandstone (Ferruginous)

Arenite (Siliclastic Sedimentary Rock)

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

Sandstone

Clastic sedimentary rock (primarily SiO2)

Sandstone Cobble (Clastic Sedimentary (Sandstone)) — sedimentary

Sandstone Cobble

Clastic Sedimentary (Sandstone)

Shale (Lutaceous sedimentary rock) — sedimentary

Shale

Lutaceous sedimentary rock

Chrysocolla on Matrix (Hydrated copper silicates ((Cu,Al)2H2Si2O5(OH)4·nH2O)) — mineral

Chrysocolla on Matrix

Hydrated copper silicates ((Cu,Al)2H2Si2O5(OH)4·nH2O)

Fossil shell fragment in sedimentary rock (Indeterminate marine mollusk shell; likely a bivalve or gastropod fossil) — fossil

Fossil shell fragment in sedimentary rock

Indeterminate marine mollusk shell; likely a bivalve or gastropod fossil

Quartz (Pink / Ferruginous) (Silicon Dioxide (SiO2)) — mineral

Quartz (Pink / Ferruginous)

Silicon Dioxide (SiO2)

Sandstone (Ferruginous) (Arenite (SiO2 based with Fe2O3 banding)) — sedimentary

Sandstone (Ferruginous)

Arenite (SiO2 based with Fe2O3 banding)