Rock Identifier

Category

Mineral (Evaporite)

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

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]

Glauconitic Sandstone (Glauconitic Sandstone (complex silicate formula: (K,Na)(Fe,Al,Mg)2(Si,Al)4O10(OH)2)) — sedimentary

Glauconitic Sandstone

Glauconitic Sandstone (complex silicate formula: (K,Na)(Fe,Al,Mg)2(Si,Al)4O10(OH)2)

Malachite (Copper carbonate hydroxide [Cu2CO3(OH)2]) — Mineral

Malachite

Copper carbonate hydroxide [Cu2CO3(OH)2]

Sandstone (with Iron Staining) (Clastic sedimentary rock (primarily SiO2)) — sedimentary

Sandstone (with Iron Staining)

Clastic sedimentary rock (primarily SiO2)

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

Turquoise

Hydrated copper and aluminum phosphate (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]

Sandstone (Arenite (composed primarily of SiO2)) — sedimentary

Sandstone

Arenite (composed primarily of SiO2)

Amygdaloidal Basalt (Basalt with secondary amygdule minerals (likely Epidote or Chlorite)) — igneous

Amygdaloidal Basalt

Basalt with secondary amygdule minerals (likely Epidote or Chlorite)

Chipped Glass/Plastic Fragment (Silicon dioxide (SiO2) for glass (amorphous) or various polymer compounds for plastic) — Man-made material (simulant/artifact)

Chipped Glass/Plastic Fragment

Silicon dioxide (SiO2) for glass (amorphous) or various polymer compounds for plastic

Man-made material (simulant/artifact)

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

Botryoidal Hematite (Iron Stone Conglomerate)

Hematite (Fe2O3) in sedimentary matrix

Halite (Sodium Chloride (NaCl)) — Mineral

Halite

Sodium Chloride (NaCl)

Pink Halite (Himalayan Salt) (Halite (Sodium Chloride, NaCl)) — sedimentary

Pink Halite (Himalayan Salt)

Halite (Sodium Chloride, NaCl)

Conglomerate (Conglomerate (a clastic sedimentary rock)) — Sedimentary Rock

Conglomerate

Conglomerate (a clastic sedimentary rock)

Sedimentary Rock

Basalt with Secondary Mineral Inclusions (Amygdaloidal Basalt (Mafic volcanic rock, primarily Augite and Plagioclase)) — igneous

Basalt with Secondary Mineral Inclusions

Amygdaloidal Basalt (Mafic volcanic rock, primarily Augite and Plagioclase)

Caliche (also known as hardpan, calcrete, kankar) (Primarily composed of calcium carbonate (CaCO₃), often mixed with other minerals like quartz, clay minerals, and iron oxides.) — Mineral

Caliche (also known as hardpan, calcrete, kankar)

Primarily composed of calcium carbonate (CaCO₃), often mixed with other minerals like quartz, clay minerals, and iron oxides.

Magnetite (Lodestone variety) (Magnetite (Iron(II,III) oxide, Fe3O4)) — mineral

Magnetite (Lodestone variety)

Magnetite (Iron(II,III) oxide, Fe3O4)

River/Stream Pebble (Clast / Detrital Grain / Rounded Sedimentary Particle (Compositionally variable, commonly Quartz, Feldspar, Chert, or other resistant rock fragments)) — Mineral, specifically a rock fragment

River/Stream Pebble

Clast / Detrital Grain / Rounded Sedimentary Particle (Compositionally variable, commonly Quartz, Feldspar, Chert, or other resistant rock fragments)

Mineral, specifically a rock fragment

Schist (Schist (various compositions)) — metamorphic

Schist

Schist (various compositions)

Stilbite (Stilbite-Ca (NaCa4(Si27Al9)O72·28H2O)) — mineral

Stilbite

Stilbite-Ca (NaCa4(Si27Al9)O72·28H2O)

Quartz (Orangey-white variety) (Silicon Dioxide (SiO2)) — mineral

Quartz (Orangey-white variety)

Silicon Dioxide (SiO2)

Yellow Apatite Sphere (Polished) (Fluorapatite / Ca5(PO4)3F) — mineral

Yellow Apatite Sphere (Polished)

Fluorapatite / Ca5(PO4)3F

Garnet Schist (Almandine Garnet Schist) — metamorphic

Garnet Schist

Almandine Garnet Schist

Quartz Pebble (Silicon Dioxide (SiO2)) — mineral

Quartz Pebble

Silicon Dioxide (SiO2)

Quartz (River Pebble) (Silicon Dioxide (SiO2)) — mineral

Quartz (River Pebble)

Silicon Dioxide (SiO2)

Quartz Pebble (Silicon Dioxide (SiO2)) — mineral

Quartz Pebble

Silicon Dioxide (SiO2)

Quartz (River Pebble) (Silicon Dioxide (SiO2)) — mineral

Quartz (River Pebble)

Silicon Dioxide (SiO2)

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

Quartz (Smoky/Milky variety)

Silicon Dioxide (SiO2)

Rough Quartz (with potential Host Rock) (Silicon Dioxide (SiO2)) — mineral

Rough Quartz (with potential Host Rock)

Silicon Dioxide (SiO2)

Quartz Pebble (Silicon Dioxide (SiO2)) — mineral

Quartz Pebble

Silicon Dioxide (SiO2)

Milky Quartz (Silicon Dioxide (SiO2)) — mineral

Milky Quartz

Silicon Dioxide (SiO2)

Druzy Quartz on Agate/Chert (Silicon Dioxide (SiO2)) — mineral

Druzy Quartz on Agate/Chert

Silicon Dioxide (SiO2)

Banded Calcite (often sold as 'Mexican Onyx' or 'Calcite Onyx') (Calcite (Calcium Carbonate, CaCO3)) — sedimentary

Banded Calcite (often sold as 'Mexican Onyx' or 'Calcite Onyx')

Calcite (Calcium Carbonate, CaCO3)

Garnet (Almandine/Pyrope series) (Silicate mineral (Almandine: Fe3Al2Si3O12; Pyrope: Mg3Al2Si3O12)) — mineral

Garnet (Almandine/Pyrope series)

Silicate mineral (Almandine: Fe3Al2Si3O12; Pyrope: Mg3Al2Si3O12)

Peacock Ore (Bornite or Chalcopyrite) (Bornite (Cu₅FeS₄) or iridescent Chalcopyrite (CuFeS₂)) — mineral

Peacock Ore (Bornite or Chalcopyrite)

Bornite (Cu₅FeS₄) or iridescent Chalcopyrite (CuFeS₂)

Quartz (Iron-stained) (Silicon Dioxide (SiO2)) — mineral

Quartz (Iron-stained)

Silicon Dioxide (SiO2)

Milky Quartz with Chlorite/Epidote inclusions (Silicon Dioxide (SiO2) with phyllosilicate/sorosilicate inclusions) — mineral

Milky Quartz with Chlorite/Epidote inclusions

Silicon Dioxide (SiO2) with phyllosilicate/sorosilicate inclusions

Schist (Schist) — metamorphic

Schist

Schist

Green Chalcedony (Silicon Dioxide (SiO2) with trace minerals) — mineral

Green Chalcedony

Silicon Dioxide (SiO2) with trace minerals

Included Quartz Beads (likely Phantom Quartz or Garden Quartz) (Quartz (SiO2) with various mineral inclusions) — Mineral

Included Quartz Beads (likely Phantom Quartz or Garden Quartz)

Quartz (SiO2) with various mineral inclusions

Bicolor Quartz Pebble (Silicon Dioxide (SiO2) with mineral inclusions) — mineral

Bicolor Quartz Pebble

Silicon Dioxide (SiO2) with mineral inclusions

Olivine (Peridot when gem-quality) (Olivine Group (Magnesium Iron Silicate, (Mg,Fe)2SiO4)) — mineral

Olivine (Peridot when gem-quality)

Olivine Group (Magnesium Iron Silicate, (Mg,Fe)2SiO4)

Quartz (Smoky/Grey Quartz Variant) (Silicon Dioxide (SiO2)) — mineral

Quartz (Smoky/Grey Quartz Variant)

Silicon Dioxide (SiO2)