Rock Identifier

Category

Mineral (Extraterrestrial)

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

Learn about Mineral (Extraterrestrial) in the encyclopedia

Glauconite

Hutcheonite

Halite

Sperrylite

Baddeleyite

Anatase

Brookite

Talc

Euxenite

Eltyubyuite

Buergerite

Dolomite

Likely fluorescent mineral specimen (Uncertain; possibly willemite (Zn₂SiO₄) or fluorite (CaF₂)) — mineral

Likely fluorescent mineral specimen

Uncertain; possibly willemite (Zn₂SiO₄) or fluorite (CaF₂)

Hemimorphite (Hemimorphite (Zn4Si2O7(OH)2·H2O)) — mineral

Hemimorphite

Hemimorphite (Zn4Si2O7(OH)2·H2O)

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

Blue Apatite

Fluorapatite (Ca5(PO4)3F)

Serpentine (likely antigorite-rich serpentinite fragment) (Serpentine-group minerals, chiefly Mg₃Si₂O₅(OH)₄) — metamorphic

Serpentine (likely antigorite-rich serpentinite fragment)

Serpentine-group minerals, chiefly Mg₃Si₂O₅(OH)₄

Gravel and Sediment Sample (Mixed clastic sediment) — sedimentary

Gravel and Sediment Sample

Mixed clastic sediment

Green serpentine-rich rock (possibly serpentinite) (Serpentinite, composed chiefly of serpentine-group minerals (e.g., lizardite, antigorite, or chrysotile)) — metamorphic

Green serpentine-rich rock (possibly serpentinite)

Serpentinite, composed chiefly of serpentine-group minerals (e.g., lizardite, antigorite, or chrysotile)

Potassium Feldspar (Orthoclase (KAlSi3O8)) — mineral

Potassium Feldspar

Orthoclase (KAlSi3O8)

Pink Feldspar (Orthoclase) (Orthoclase Feldspar (KAlSi3O8)) — mineral

Pink Feldspar (Orthoclase)

Orthoclase Feldspar (KAlSi3O8)

Granite (Granite, a coarse-grained intrusive felsic rock composed mainly of quartz, feldspar, and mica) — igneous

Granite

Granite, a coarse-grained intrusive felsic rock composed mainly of quartz, feldspar, and mica

Vesicular Basalt / Scoria pebble (Extrusive igneous rock with amygdaloidal infilling) — igneous

Vesicular Basalt / Scoria pebble

Extrusive igneous rock with amygdaloidal infilling

Likely faceted garnet (Garnet group, commonly almandine (Fe₃Al₂(SiO₄)₃); identification from the photo is uncertain) — gemstone

Likely faceted garnet

Garnet group, commonly almandine (Fe₃Al₂(SiO₄)₃); identification from the photo is uncertain

Blue Apatite (Ca5(PO4)3(F,Cl,OH)) — mineral

Blue Apatite

Ca5(PO4)3(F,Cl,OH)

Satin Spar (Gypsum) (Calcium Sulfate Dihydrate (CaSO4·2H2O)) — mineral

Satin Spar (Gypsum)

Calcium Sulfate Dihydrate (CaSO4·2H2O)

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

Limonite / Ironstone

Limonite (Hydrated Iron Oxide) - FeO(OH)·nH2O

Weathered rock pebble, possibly quartz-rich sandstone (Uncertain from the image; likely quartz-bearing sandstone with iron-oxide staining) — sedimentary

Weathered rock pebble, possibly quartz-rich sandstone

Uncertain from the image; likely quartz-bearing sandstone with iron-oxide staining

Hematite (Iron(III) oxide (Fe2O3)) — mineral

Hematite

Iron(III) oxide (Fe2O3)

Quartz-rich rock, likely granite or quartz-bearing metamorphic rock (Undetermined; possibly granitic rock composed mainly of quartz and feldspar, with mica or other dark minerals) — igneous

Quartz-rich rock, likely granite or quartz-bearing metamorphic rock

Undetermined; possibly granitic rock composed mainly of quartz and feldspar, with mica or other dark minerals

Unidentified small mineral specimen (Undetermined from the image) — mineral

Unidentified small mineral specimen

Undetermined from the image

Fossilized Shark Tooth (Chondrichthyes (Class)) — fossil

Fossilized Shark Tooth

Chondrichthyes (Class)

Shark Tooth Fossil (Chondrichthyes (class) fossilized tooth) — fossil

Shark Tooth Fossil

Chondrichthyes (class) fossilized tooth

Amethyst (Quartz (Silicon Dioxide, SiO2)) — gemstone

Amethyst

Quartz (Silicon Dioxide, SiO2)

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)

Rhodochrosite (Manganese Carbonate (MnCO3)) — mineral

Rhodochrosite

Manganese Carbonate (MnCO3)

Gneiss (Gneiss) — metamorphic

Gneiss

Gneiss

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

Rainbow Fluorite

Fluorite (Calcium Fluoride, CaF2)

Native Copper (Copper (Cu)) — mineral

Native Copper

Copper (Cu)

Yellow Ochre / Limonite (Hydrated ferric oxide (FeO(OH)·nH2O)) — mineral

Yellow Ochre / Limonite

Hydrated ferric oxide (FeO(OH)·nH2O)

Likely garnet-bearing rock (possibly almandine garnet in matrix) (Garnet, likely almandine (Fe₃Al₂Si₃O₁₂); host rock cannot be determined from the image) — metamorphic

Likely garnet-bearing rock (possibly almandine garnet in matrix)

Garnet, likely almandine (Fe₃Al₂Si₃O₁₂); host rock cannot be determined from the image

Quartz Mineral (Silicon Dioxide (SiO2)) — mineral

Quartz Mineral

Silicon Dioxide (SiO2)

Unknown Rock Fragment (Unknown) — unknown

Unknown Rock Fragment

Unknown

Banded gneiss pebble (Feldspar–quartz gneiss; exact mineral composition cannot be confirmed from the image) — metamorphic

Banded gneiss pebble

Feldspar–quartz gneiss; exact mineral composition cannot be confirmed from the image

Drill Core Samples (Varied Lithology) (Multi-lithological core samples (containing potential granite, marble, and phyllite/schist sequence)) — igneous, sedimentary, and metamorphic

Drill Core Samples (Varied Lithology)

Multi-lithological core samples (containing potential granite, marble, and phyllite/schist sequence)

igneous, sedimentary, and metamorphic

Amethyst (Amethyst (Silicon Dioxide, SiO2)) — mineral

Amethyst

Amethyst (Silicon Dioxide, SiO2)

Marble (Recrystallized Calcite (CaCO3)) — metamorphic

Marble

Recrystallized Calcite (CaCO3)

Chlorite-rich schist (probable greenschist) (Greenschist-facies metabasalt or chlorite–actinolite schist) — metamorphic

Chlorite-rich schist (probable greenschist)

Greenschist-facies metabasalt or chlorite–actinolite schist

Fossil bone, possibly a large mammal long-bone fragment (Fossilized cortical bone; taxon indeterminate from the photograph) — fossil

Fossil bone, possibly a large mammal long-bone fragment

Fossilized cortical bone; taxon indeterminate from the photograph

Shark Tooth Fossil (Vertebrate fossilized tooth (various genera such as Carcharodon, Otodus, or Negaprion)) — fossil

Shark Tooth Fossil

Vertebrate fossilized tooth (various genera such as Carcharodon, Otodus, or Negaprion)

Granite (Phaneritic Plutonic Felsic Rock) — igneous

Granite

Phaneritic Plutonic Felsic Rock

Green-and-white rough mineral specimen, possibly amazonite (Unconfirmed; possible amazonite, a green variety of microcline feldspar (KAlSi₃O₈)) — mineral

Green-and-white rough mineral specimen, possibly amazonite

Unconfirmed; possible amazonite, a green variety of microcline feldspar (KAlSi₃O₈)

Pink-orange mineral fragment, likely feldspar (possibly potassium feldspar) (Likely orthoclase or microcline, KAlSi₃O₈; identification from the image is uncertain) — mineral

Pink-orange mineral fragment, likely feldspar (possibly potassium feldspar)

Likely orthoclase or microcline, KAlSi₃O₈; identification from the image is uncertain

Green serpentine (likely serpentinite) (Serpentine-group minerals, commonly antigorite, lizardite, and/or chrysotile; rock name: serpentinite) — metamorphic

Green serpentine (likely serpentinite)

Serpentine-group minerals, commonly antigorite, lizardite, and/or chrysotile; rock name: serpentinite

Orthoclase Feldspar (Orthoclase (KAlSi3O8)) — mineral

Orthoclase Feldspar

Orthoclase (KAlSi3O8)