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

Concretion with Geode Cavity (Ferruginous Sandstone Concretion with Quartz Center) — sedimentary

Concretion with Geode Cavity

Ferruginous Sandstone Concretion with Quartz Center

Milky Quartz with Iron Staining (Quartz (Silicon Dioxide, SiO2)) — mineral

Milky Quartz with Iron Staining

Quartz (Silicon Dioxide, SiO2)

Turquoise (possible Dyed Howlite or Magnesite imitation) (CuAl6(PO4)4(OH)8·4H2O (Turquoise)) — mineral

Turquoise (possible Dyed Howlite or Magnesite imitation)

CuAl6(PO4)4(OH)8·4H2O (Turquoise)

Ferruginous Quartz (Iron-Stained Quartz) (Silicon Dioxide (SiO2) with Iron Oxide inclusions) — mineral

Ferruginous Quartz (Iron-Stained Quartz)

Silicon Dioxide (SiO2) with Iron Oxide inclusions

Red Sandstone (Iron-Rich) (Arenite (Fe2O3)) — sedimentary

Red Sandstone (Iron-Rich)

Arenite (Fe2O3)

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)

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)

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]

Azurite with Malachite and Limonite (Azurite Cu3(CO3)2(OH)2 / Malachite Cu2CO3(OH)2) — mineral

Azurite with Malachite and Limonite

Azurite Cu3(CO3)2(OH)2 / Malachite Cu2CO3(OH)2

Red Sandstone (with possible iron oxide staining) (Sandstone (primarily Quartz with Hematite/Goethite cement)) — sedimentary

Red Sandstone (with possible iron oxide staining)

Sandstone (primarily Quartz with Hematite/Goethite cement)

Red Sandstone (Arenite (Ferruginous Sandstone)) — sedimentary

Red Sandstone

Arenite (Ferruginous Sandstone)

Limonite (Limonite (Hydrous iron oxides, FeO(OH)·nH2O)) — mineral

Limonite

Limonite (Hydrous iron oxides, FeO(OH)·nH2O)

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

Turquoise

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

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

Turquoise

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

Moonstone (Orthoclase (Potassium Feldspar) - (K,Na)AlSi3O8) — mineral

Moonstone

Orthoclase (Potassium Feldspar) - (K,Na)AlSi3O8

Milky Quartz (Silicon Dioxide (SiO2)) — mineral

Milky Quartz

Silicon Dioxide (SiO2)

Red Sandstone (Arenite (with Iron Oxide cement)) — sedimentary

Red Sandstone

Arenite (with Iron Oxide cement)

Sandstone with Iron Oxide (Limonite/Hematite) (Ferruginous Sandstone (SiO2 with FeO(OH)·nH2O)) — sedimentary

Sandstone with Iron Oxide (Limonite/Hematite)

Ferruginous Sandstone (SiO2 with FeO(OH)·nH2O)

Quartz Vein in Host Rock (Gneiss/Schist) (Silicon Dioxide (SiO2) within a metamorphic matrix) — metamorphic

Quartz Vein in Host Rock (Gneiss/Schist)

Silicon Dioxide (SiO2) within a metamorphic matrix

Water and Silt (Sedimentary Environment) (Suspended Sediment / H2O (dihydrogen monoxide)) — sedimentary

Water and Silt (Sedimentary Environment)

Suspended Sediment / H2O (dihydrogen monoxide)

Tiger's Eye (Mineral Collection) (Tiger's Eye (SiO2 with crocidolite inclusions)) — mineral

Tiger's Eye (Mineral Collection)

Tiger's Eye (SiO2 with crocidolite inclusions)

Green Calcite (Calcite (CaCO3)) — mineral

Green Calcite

Calcite (CaCO3)

Amazonite (Microcline (K(AlSi3O8))) — mineral

Amazonite

Microcline (K(AlSi3O8))

Sandstone Cobble (Arenite (Sandstone)) — sedimentary

Sandstone Cobble

Arenite (Sandstone)

Sandstone (likely Ferruginous) (Arenite (primarily SiO2 with Fe2O3 staining)) — sedimentary

Sandstone (likely Ferruginous)

Arenite (primarily SiO2 with Fe2O3 staining)

Picture Jasper (Silicon Dioxide (SiO2) with iron oxide and organic impurities) — sedimentary

Picture Jasper

Silicon Dioxide (SiO2) with iron oxide and organic impurities

Limestone (Tufa/Travertine) (Sedimentary Calcium Carbonate (CaCO3)) — sedimentary

Limestone (Tufa/Travertine)

Sedimentary Calcium Carbonate (CaCO3)

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

Banded Gneiss

Gneiss (High-grade Regional Metamorphic Rock)

Quartz (Rock Crystal) with minor impurities (Quartz (SiO2)) — Mineral

Quartz (Rock Crystal) with minor impurities

Quartz (SiO2)

Limonite-stained Quartz (Silicon Dioxide (SiO2) with Hydrated Iron Oxide (FeO(OH)·nH2O) coatings) — mineral

Limonite-stained Quartz

Silicon Dioxide (SiO2) with Hydrated Iron Oxide (FeO(OH)·nH2O) coatings

Granite Pegmatite (Phaneritic Plutonic Igneous Rock) — igneous

Granite Pegmatite

Phaneritic Plutonic Igneous Rock

Opal (Hydrated silica (SiO2 "NH2O)) — mineraloid

Opal

Hydrated silica (SiO2 "NH2O)

Quartz Vein (Iron-stained) (Silicon Dioxide (SiO2) with limonite/hematite staining) — mineral

Quartz Vein (Iron-stained)

Silicon Dioxide (SiO2) with limonite/hematite staining

Sandstone with Iron Staining (Clastic sedimentary rock (SiO2 with iron oxides)) — sedimentary

Sandstone with Iron Staining

Clastic sedimentary rock (SiO2 with iron oxides)

Magnetite (Iron Ore) (Iron(II,III) oxide (Fe3O4)) — mineral

Magnetite (Iron Ore)

Iron(II,III) oxide (Fe3O4)

Limonite (Iron Ore) (Limonite (mixed iron hydroxides, primarily FeO(OH)·nH2O)) — mineral

Limonite (Iron Ore)

Limonite (mixed iron hydroxides, primarily FeO(OH)·nH2O)

Sardonyx Agate Sphere (Cryptocrystalline Quartz (SiO2) with iron oxide inclusions) — mineral

Sardonyx Agate Sphere

Cryptocrystalline Quartz (SiO2) with iron oxide inclusions

Limonite (Iron Ore) (Limonite (Hydrous iron(III) oxide-hydroxide mixture, FeO(OH)·nH2O)) — mineral

Limonite (Iron Ore)

Limonite (Hydrous iron(III) oxide-hydroxide mixture, FeO(OH)·nH2O)

Sandstone (with Iron Staining) (Clastic Sedimentary Rock (primarily Quartz, SiO2)) — sedimentary

Sandstone (with Iron Staining)

Clastic Sedimentary Rock (primarily Quartz, SiO2)

Turquoise (set in silver jewelry) (Turquoise - CuAl6(PO4)4(OH)8·4H2O (Hydrated copper and aluminum phosphate)) — mineral

Turquoise (set in silver jewelry)

Turquoise - CuAl6(PO4)4(OH)8·4H2O (Hydrated copper and aluminum phosphate)

Azurite and Malachite on Matrix (Azurite: Cu3(CO3)2(OH)2; Malachite: Cu2CO3(OH)2) — mineral

Azurite and Malachite on Matrix

Azurite: Cu3(CO3)2(OH)2; Malachite: Cu2CO3(OH)2

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

Turquoise

CuAl6(PO4)4(OH)8·4H2O