Rock Identifier

Category

Mineral (Evaporite)

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

Learn about Mineral (Evaporite) in the encyclopedia

Halite

Rock Salt

Rock Gypsum

Glauconite

Hutcheonite

Sperrylite

Baddeleyite

Anatase

Brookite

Talc

Euxenite

Eltyubyuite

Greenstone (Greenschist / Meta-basalt) — metamorphic

Greenstone

Greenschist / Meta-basalt

Clear Quartz (Crystalline Silicon Dioxide (SiO2)) — mineral

Clear Quartz

Crystalline Silicon Dioxide (SiO2)

Polished orbicular jasper (likely ocean jasper) (Silica-rich microcrystalline quartz/chalcedony with iron oxides and accessory minerals; SiO₂-dominant) — mineral

Polished orbicular jasper (likely ocean jasper)

Silica-rich microcrystalline quartz/chalcedony with iron oxides and accessory minerals; SiO₂-dominant

Sandstone (Clastic Sedimentary Rock) — sedimentary

Sandstone

Clastic Sedimentary Rock

Note regarding baguette production (not a rock) (Digital text image - Somali language) — not a rock

Note regarding baguette production (not a rock)

Digital text image - Somali language

Jasper (SiO2 (Cryptocrystalline quartz)) — mineral

Jasper

SiO2 (Cryptocrystalline quartz)

Blue Apatite (Fluorapatite (Ca5(PO4)3F)) — mineral

Blue Apatite

Fluorapatite (Ca5(PO4)3F)

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

Limonite (Yellow Ochre)

Hydrated Iron Oxide (FeO(OH)·nH2O)

Limonite and Goethite on Gossan (FeO(OH)·nH2O) — mineral

Limonite and Goethite on Gossan

FeO(OH)·nH2O

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

Limonite (Iron Ore)

Limonite (FeO(OH)·nH2O)

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

Malachite

Copper(II) carbonate hydroxide [Cu2CO3(OH)2]

Ironstone (Limonite/Hematite) (Ferruginous sedimentary rock (Fe2O3·nH2O / Fe2O3)) — sedimentary

Ironstone (Limonite/Hematite)

Ferruginous sedimentary rock (Fe2O3·nH2O / Fe2O3)

River Stones (Quartzite and Sandstone) (Quartzite / Sedimentary Rock (SiO2 dominant)) — sedimentary

River Stones (Quartzite and Sandstone)

Quartzite / Sedimentary Rock (SiO2 dominant)

Likely quartz-rich mineral specimen (Quartz (SiO₂), possibly milky quartz or quartz-bearing rock) — mineral

Likely quartz-rich mineral specimen

Quartz (SiO₂), possibly milky quartz or quartz-bearing rock

Limonite (Ironstone) pseudomorph (Limonite (Hydrous ferric oxide), FeO(OH)·nH2O) — mineral

Limonite (Ironstone) pseudomorph

Limonite (Hydrous ferric oxide), FeO(OH)·nH2O

Tumbled green stone, likely serpentine (Serpentine-group minerals, commonly antigorite or lizardite; approximate formula Mg₃Si₂O₅(OH)₄) — mineral

Tumbled green stone, likely serpentine

Serpentine-group minerals, commonly antigorite or lizardite; approximate formula Mg₃Si₂O₅(OH)₄

Vesicular basalt (likely weathered lava rock) (Vesicular basalt; primarily plagioclase feldspar, pyroxene, and volcanic glass, with possible iron-oxide alteration) — igneous

Vesicular basalt (likely weathered lava rock)

Vesicular basalt; primarily plagioclase feldspar, pyroxene, and volcanic glass, with possible iron-oxide alteration

Weathered basalt pebble (Basalt, a fine-grained mafic volcanic rock; likely olivine- and pyroxene-bearing) — igneous

Weathered basalt pebble

Basalt, a fine-grained mafic volcanic rock; likely olivine- and pyroxene-bearing

Granite (Intrusive Igneous Rock (composed of quartz, alkali feldspar, and plagioclase)) — igneous

Granite

Intrusive Igneous Rock (composed of quartz, alkali feldspar, and plagioclase)

Schist (Schist) — metamorphic

Schist

Schist

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

Rainbow Fluorite

Fluorite (Calcium Fluoride, CaF2)

Dead Sea Salt Crust (Halite (NaCl)) — sedimentary

Dead Sea Salt Crust

Halite (NaCl)

Chakra Crystal Bracelet (Mixed Mineral Assortment) — gemstone

Chakra Crystal Bracelet

Mixed Mineral Assortment

River Stone (likely Basalt or Greywacke) (Basalt with mineral veining) — igneous

River Stone (likely Basalt or Greywacke)

Basalt with mineral veining

Rhodochrosite (Manganese carbonate (MnCO3)) — mineral

Rhodochrosite

Manganese carbonate (MnCO3)

Peacock Ore (Bornite or Iridescent Chalcopyrite) (Bornite (Cu5FeS4) or Acid-treated Chalcopyrite (CuFeS2)) — mineral

Peacock Ore (Bornite or Iridescent Chalcopyrite)

Bornite (Cu5FeS4) or Acid-treated Chalcopyrite (CuFeS2)

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

Sandstone (Ferruginous)

Arenite (SiO2 based with Fe2O3 banding)

Sandstone (Arenite) — sedimentary

Sandstone

Arenite

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

Chrysocolla

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

Yellow Quartz (Silicon Dioxide (SiO2)) — mineral

Yellow Quartz

Silicon Dioxide (SiO2)

Green Fluorite (Calcium Fluoride (CaF2)) — mineral

Green Fluorite

Calcium Fluoride (CaF2)

Calcite (Calcite (Mineral; CaCO₃)) — Mineral

Calcite

Calcite (Mineral; CaCO₃)

Weathered, quartz-rich metamorphic rock (likely schist or gneiss) (Quartz–feldspar–mica schist/gneiss, with surface lichens and iron-oxide staining) — metamorphic

Weathered, quartz-rich metamorphic rock (likely schist or gneiss)

Quartz–feldspar–mica schist/gneiss, with surface lichens and iron-oxide staining

Mixed Mineral Assortment (Pyrite, Kyanite, Agate, Jasper) (FeS2 (Pyrite), Al2SiO5 (Kyanite), SiO2 (Agate/Jasper)) — mineral

Mixed Mineral Assortment (Pyrite, Kyanite, Agate, Jasper)

FeS2 (Pyrite), Al2SiO5 (Kyanite), SiO2 (Agate/Jasper)

Quartz-rich pegmatite (likely mica-bearing granite) (Granitic pegmatite; chiefly quartz (SiO₂), feldspar, and mica (muscovite/biotite)) — igneous

Quartz-rich pegmatite (likely mica-bearing granite)

Granitic pegmatite; chiefly quartz (SiO₂), feldspar, and mica (muscovite/biotite)

Agate / Chalcedony Geode (Silicon Dioxide (SiO2)) — sedimentary

Agate / Chalcedony Geode

Silicon Dioxide (SiO2)

Small tumbled orange-brown mineral fragment (Indeterminate; possibly iron-stained quartz, carnelian, or orange calcite) — mineral

Small tumbled orange-brown mineral fragment

Indeterminate; possibly iron-stained quartz, carnelian, or orange calcite

Limonite / Goethite (Ironstone Nodule) (Hydrated Iron(III) Oxide-Hydroxide (FeO(OH)·nH2O)) — mineral

Limonite / Goethite (Ironstone Nodule)

Hydrated Iron(III) Oxide-Hydroxide (FeO(OH)·nH2O)

Chrysocolla-bearing rock (likely chrysocolla in a host rock) (Chrysocolla, hydrated copper aluminosilicate: approximately (Cu,Al)₂H₂Si₂O₅(OH)₄·nH₂O) — mineral

Chrysocolla-bearing rock (likely chrysocolla in a host rock)

Chrysocolla, hydrated copper aluminosilicate: approximately (Cu,Al)₂H₂Si₂O₅(OH)₄·nH₂O

Likely lepidolite-bearing mica or purple fluorite (Lepidolite: K(Li,Al)3(Si,Al)4O10(F,OH)2; alternatively fluorite: CaF2) — mineral

Likely lepidolite-bearing mica or purple fluorite

Lepidolite: K(Li,Al)3(Si,Al)4O10(F,OH)2; alternatively fluorite: CaF2

Vesuvianite (Idocrase) (Ca19(Al, Mg, Fe)13(SiO4)10(Si2O7)4(OH, F, O)10) — mineral

Vesuvianite (Idocrase)

Ca19(Al, Mg, Fe)13(SiO4)10(Si2O7)4(OH, F, O)10

Bornite (Bornite (Cu5FeS4)) — mineral

Bornite

Bornite (Cu5FeS4)