Rock Identifier

Category

Mineral (Evaporite)

Browse mineral (evaporite) specimens identified by the Rock Identifier community.

Learn about Mineral (Evaporite) in the encyclopedia

Halite

Halite

Rock Salt

Rock Salt

Rock Gypsum

Rock Gypsum

Glauconite

Glauconite

Hutcheonite

Hutcheonite

Sperrylite

Sperrylite

Baddeleyite

Baddeleyite

Anatase

Anatase

Brookite

Brookite

Talc

Talc

Euxenite

Euxenite

Eltyubyuite

Eltyubyuite

Septarian Nodule (Septarian Concretion (Calcium Carbonate/Aragonite/Calcite)) — sedimentary

Septarian Nodule

Septarian Concretion (Calcium Carbonate/Aragonite/Calcite)

Pyrite in Quartz (Silicon Dioxide (SiO2) with Iron Sulfide (FeS2)) — mineral

Pyrite in Quartz

Silicon Dioxide (SiO2) with Iron Sulfide (FeS2)

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

Limonite (Iron Ore)

Hydrated ferric oxide (FeO(OH)·nH2O)

Covellite (Covellite (CuS)) — mineral

Covellite

Covellite (CuS)

Granite with Hematite staining (Granitoid (Quartz, Feldspar, Mica) with Iron Oxide (Fe2O3)) — igneous

Granite with Hematite staining

Granitoid (Quartz, Feldspar, Mica) with Iron Oxide (Fe2O3)

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

Red Sandstone

Arenite (primarily Quartz with Iron Oxide coating)

Schist (Micaceous) (Mica Schist) — metamorphic

Schist (Micaceous)

Mica Schist

Tree Agate (Silicon dioxide (SiO2)) — Mineral

Tree Agate

Silicon dioxide (SiO2)

Sandstone (Arenite (SiO2 primarily)) — sedimentary

Sandstone

Arenite (SiO2 primarily)

Turquoise (CuAl6(PO4)4(OH)8·4H2O) — mineral

Turquoise

CuAl6(PO4)4(OH)8·4H2O

Pyrite (Iron Disulfide (FeS2)) — mineral

Pyrite

Iron Disulfide (FeS2)

Chrysocolla (Chrysocolla (Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O)) — mineral

Chrysocolla

Chrysocolla (Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O)

Turquoise (Hydrated phosphate of copper and aluminium (CuAl6(PO4)4(OH)8·4H2O)) — mineral

Turquoise

Hydrated phosphate of copper and aluminium (CuAl6(PO4)4(OH)8·4H2O)

Kidney Stone (Calcium Oxalate (CaC2O4·nH2O)) — mineral

Kidney Stone

Calcium Oxalate (CaC2O4·nH2O)

Azurite (Azurite (Cu3(CO3)2(OH)2)) — mineral

Azurite

Azurite (Cu3(CO3)2(OH)2)

Gneiss (Foliated Metamorphic Rock (Gneiss)) — metamorphic

Gneiss

Foliated Metamorphic Rock (Gneiss)

Chrysocolla (Chrysocolla (Cu2-xAlx(H2-xSi2O5)(OH)4·nH2O)) — mineral

Chrysocolla

Chrysocolla (Cu2-xAlx(H2-xSi2O5)(OH)4·nH2O)

Quartz (Milky/Rose variety) (Silicon Dioxide (SiO2)) — mineral

Quartz (Milky/Rose variety)

Silicon Dioxide (SiO2)

Tufa (Calcareous Tufa (Calcium carbonate, CaCO3)) — sedimentary

Tufa

Calcareous Tufa (Calcium carbonate, CaCO3)

Hematite (Hematite (Fe2O3)) — Mineral

Hematite

Hematite (Fe2O3)

Granite or Pegmatite in host rock (Granitoid / Felsic Intrusive Rock) — Igneous

Granite or Pegmatite in host rock

Granitoid / Felsic Intrusive Rock

Glaucophane-bearing Schist (Blueschist) (Blueschist (Glaucophane-Lawsonite Schist)) — metamorphic

Glaucophane-bearing Schist (Blueschist)

Blueschist (Glaucophane-Lawsonite Schist)

Pink Granite (Granite (Phaneritic Quartz-Feldspar Rock)) — igneous

Pink Granite

Granite (Phaneritic Quartz-Feldspar Rock)

Gneiss (Gneiss) — metamorphic

Gneiss

Gneiss

Emerald in Host Rock (Beryl (Be3Al2Si6O18) with Chromium/Vanadium impurities) — mineral

Emerald in Host Rock

Beryl (Be3Al2Si6O18) with Chromium/Vanadium impurities

Citrine (SiO2 (Silicon Dioxide)) — mineral

Citrine

SiO2 (Silicon Dioxide)

Granodiorite (or Granite) Pebble (Phaneritic Felsic Igneous Pebble) — igneous

Granodiorite (or Granite) Pebble

Phaneritic Felsic Igneous Pebble

Fluorite (Rainbow or Multi-colored Fluorite) (Fluorite (Calcium Fluoride - CaF2)) — mineral

Fluorite (Rainbow or Multi-colored Fluorite)

Fluorite (Calcium Fluoride - CaF2)

Sandstone (Arenite (SiO2 based)) — sedimentary

Sandstone

Arenite (SiO2 based)

Quartz Geode (SiO2 (Silicon Dioxide)) — sedimentary

Quartz Geode

SiO2 (Silicon Dioxide)

Turquoise and Hematite (CuAl6(PO4)4(OH)8·4H2O (Turquoise) and Fe2O3 (Hematite)) — mineral

Turquoise and Hematite

CuAl6(PO4)4(OH)8·4H2O (Turquoise) and Fe2O3 (Hematite)

Red Sandstone (Iron-rich) (Ferruginous Sandstone (SiO2 with Iron Oxides)) — sedimentary

Red Sandstone (Iron-rich)

Ferruginous Sandstone (SiO2 with Iron Oxides)

Quartz-veined Sedimentary Rock (Hydrothermally veined Clastic Sedimentary Rock (SiO2 veins in Matrix)) — sedimentary

Quartz-veined Sedimentary Rock

Hydrothermally veined Clastic Sedimentary Rock (SiO2 veins in Matrix)

Sandstone (Arenite (lithic or quartz sandstone)) — sedimentary

Sandstone

Arenite (lithic or quartz sandstone)

Sandstone (likely with Quartz Veining) (Arenite (primarily SiO2)) — sedimentary

Sandstone (likely with Quartz Veining)

Arenite (primarily SiO2)

Granite (Granite) — igneous

Granite

Granite

Gneiss (Metamorphic Gneiss) — metamorphic

Gneiss

Metamorphic Gneiss

Gneiss (with Quartzite and Mica) (Gneiss) — metamorphic

Gneiss (with Quartzite and Mica)

Gneiss

Banded Gneiss (Gneiss (High-grade regional metamorphic rock)) — metamorphic

Banded Gneiss

Gneiss (High-grade regional metamorphic rock)

Gneiss (Gneiss (High-grade Regional Metamorphic Rock)) — metamorphic

Gneiss

Gneiss (High-grade Regional Metamorphic Rock)

Diorite (Phaneritic plutonic rock (dominated by plagioclase feldspar and hornblende)) — igneous

Diorite

Phaneritic plutonic rock (dominated by plagioclase feldspar and hornblende)

Limonite Concretion (FeO(OH)·nH2O (Hydrated Iron Oxide)) — sedimentary

Limonite Concretion

FeO(OH)·nH2O (Hydrated Iron Oxide)