Rock Identifier

Category

Mineral (Synthetic)

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

Learn about Mineral (Synthetic) in the encyclopedia

Yttrium Aluminum Garnet

Yttrium Aluminum Garnet

Zincite

Opalite

Lead Feldspar

Glauconite

Hutcheonite

Halite

Sperrylite

Baddeleyite

Anatase

Brookite

Talc

Fluorite (Calcium Fluoride (CaF2)) — mineral

Fluorite

Calcium Fluoride (CaF2)

Galena (Lead Sulfide (PbS)) — mineral

Galena

Lead Sulfide (PbS)

Fluorite (Calcium Fluoride (CaF2)) — mineral

Fluorite

Calcium Fluoride (CaF2)

Quartz Vein Rock (Silicon dioxide (SiO2) within a host rock matrix) — mineral

Quartz Vein Rock

Silicon dioxide (SiO2) within a host rock matrix

Limonite / Goethite (Iron Ore Mineral nodule) (FeO(OH)·nH2O / FeO(OH)) — mineral

Limonite / Goethite (Iron Ore Mineral nodule)

FeO(OH)·nH2O / FeO(OH)

Blue Apatite (Calcium Fluorophosphate - Ca5(PO4)3F) — mineral

Blue Apatite

Calcium Fluorophosphate - Ca5(PO4)3F

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

Blue Apatite

Fluorapatite (Ca5(PO4)3F)

Polished green tumbled stone, likely serpentine (Serpentinite (rock composed chiefly of serpentine-group minerals, approximately Mg₃Si₂O₅(OH)₄)) — metamorphic

Polished green tumbled stone, likely serpentine

Serpentinite (rock composed chiefly of serpentine-group minerals, approximately Mg₃Si₂O₅(OH)₄)

Green river-worn pebble, likely serpentinite (Serpentinite (serpentine-group minerals; identification is provisional from the photograph)) — metamorphic

Green river-worn pebble, likely serpentinite

Serpentinite (serpentine-group minerals; identification is provisional from the photograph)

Chrysocolla with Malachite (Cu2-xAlx(H2-xSi2O5)(OH)4%CnH2O (Chrysocolla)) — mineral

Chrysocolla with Malachite

Cu2-xAlx(H2-xSi2O5)(OH)4%CnH2O (Chrysocolla)

Nephrite Jade (Nephrite) — Mineral/Rock

Nephrite Jade

Nephrite

Limonite with Quartz (Hydrated Iron Oxide Hydroxide with Silicon Dioxide (FeO(OH)·nH2O + SiO2)) — mineral

Limonite with Quartz

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

Limonite (FeO(OH)·nH2O) — mineral

Limonite

FeO(OH)·nH2O

Biotite Schist (Biotite-rich Schist [K(Mg,Fe)3AlSi3O10(F,OH)2]) — metamorphic

Biotite Schist

Biotite-rich Schist [K(Mg,Fe)3AlSi3O10(F,OH)2]

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

Pyrite in Quartz Matrix

Iron Sulfide (FeS2) embedded in Silicon Dioxide (SiO2)

Likely garnet gemstone (Garnet-group silicate; species cannot be determined from the photo (common red varieties include almandine, Fe₃Al₂(SiO₄)₃, and pyrope, Mg₃Al₂(SiO₄)₃).) — gemstone

Likely garnet gemstone

Garnet-group silicate; species cannot be determined from the photo (common red varieties include almandine, Fe₃Al₂(SiO₄)₃, and pyrope, Mg₃Al₂(SiO₄)₃).

Fluorite (Calcium Fluoride (CaF2)) — mineral

Fluorite

Calcium Fluoride (CaF2)

Green Fluorite (Calcium Fluoride (CaF2)) — mineral

Green Fluorite

Calcium Fluoride (CaF2)

Green Apatite on Albite (Fluorapatite [Ca5(PO4)3F] on Albite [Na(AlSi3O8)]) — mineral

Green Apatite on Albite

Fluorapatite [Ca5(PO4)3F] on Albite [Na(AlSi3O8)]

Shark Tooth Fossil (Vertebrate fossilized tooth) — fossil

Shark Tooth Fossil

Vertebrate fossilized tooth

Pink granite pebble (Granite, a coarse-grained felsic intrusive igneous rock) — igneous

Pink granite pebble

Granite, a coarse-grained felsic intrusive igneous rock

Small rounded pebble (rock type indeterminate) (Unidentified lithic pebble; specific composition cannot be determined from the image) — sedimentary

Small rounded pebble (rock type indeterminate)

Unidentified lithic pebble; specific composition cannot be determined from the image

Epidote (Epidote - Ca2(Al2,Fe3+)3(SiO4)3(OH)) — mineral

Epidote

Epidote - Ca2(Al2,Fe3+)3(SiO4)3(OH)

Pale green stone, possibly serpentine (Serpentinite (dominantly serpentine-group minerals; visual identification is uncertain)) — metamorphic

Pale green stone, possibly serpentine

Serpentinite (dominantly serpentine-group minerals; visual identification is uncertain)

Orthoclase Feldspar (Granitic) (KAlSi3O8 (Potassium Feldspar)) — igneous

Orthoclase Feldspar (Granitic)

KAlSi3O8 (Potassium Feldspar)

Small gray-green tumbled stone, likely serpentine (Serpentine-group minerals, approximately Mg₃Si₂O₅(OH)₄; identification is uncertain from the image alone) — metamorphic

Small gray-green tumbled stone, likely serpentine

Serpentine-group minerals, approximately Mg₃Si₂O₅(OH)₄; identification is uncertain from the image alone

Veined Sandstone with Calcite Veins (Sedimentary sandstone with hydrothermal/mineral veins) — sedimentary

Veined Sandstone with Calcite Veins

Sedimentary sandstone with hydrothermal/mineral veins

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

Limonite (Iron Ore)

Limonite (FeO(OH)·nH2O)

Lepidolite (K(Li,Al)3(Al,Si,4)10(O,F,OH)2) — mineral

Lepidolite

K(Li,Al)3(Al,Si,4)10(O,F,OH)2

Pyrite or Chalcopyrite specimen (Gold-colored mineral coating) (Iron Sulfide (FeS2) / Copper Iron Sulfide (CuFeS2)) — mineral

Pyrite or Chalcopyrite specimen (Gold-colored mineral coating)

Iron Sulfide (FeS2) / Copper Iron Sulfide (CuFeS2)

Limonite (FeO(OH)•nH2O) — mineral

Limonite

FeO(OH)•nH2O

Polished garnet bead (likely almandine) (Almandine garnet, Fe₃Al₂(SiO₄)₃ (tentative visual identification)) — gemstone

Polished garnet bead (likely almandine)

Almandine garnet, Fe₃Al₂(SiO₄)₃ (tentative visual identification)

Pink Granite Gneiss (Gneiss (High-grade metamorphic rock)) — metamorphic

Pink Granite Gneiss

Gneiss (High-grade metamorphic rock)

Likely serpentine (Serpentine-group minerals, chiefly antigorite, lizardite, or chrysotile; approximate formula Mg₃Si₂O₅(OH)₄) — metamorphic

Likely serpentine

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

Weathered, iron-stained granite (possible granitic gneiss) (Granite, a quartz–feldspar–mica plutonic rock; visual identification is uncertain) — igneous

Weathered, iron-stained granite (possible granitic gneiss)

Granite, a quartz–feldspar–mica plutonic rock; visual identification is uncertain

Quartz with Sericite and Cinnabar (Silicon Dioxide (SiO2) with muscovite/sericite and mercury sulfide (HgS)) — mineral

Quartz with Sericite and Cinnabar

Silicon Dioxide (SiO2) with muscovite/sericite and mercury sulfide (HgS)

Raw dark metallic mineral specimen, possibly native gold-bearing quartz or sulfide ore (Uncertain from image; possible pyrite/chalcopyrite-bearing quartz or gold-bearing sulfide matrix) — mineral

Raw dark metallic mineral specimen, possibly native gold-bearing quartz or sulfide ore

Uncertain from image; possible pyrite/chalcopyrite-bearing quartz or gold-bearing sulfide matrix

Fluorite (Calcium Fluoride (CaF2)) — mineral

Fluorite

Calcium Fluoride (CaF2)

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

Rainbow Fluorite

Fluorite (Calcium Fluoride, CaF2)

Granite with Epidote (Granite, containing quartz, feldspar, and epidote) — Igneous

Granite with Epidote

Granite, containing quartz, feldspar, and epidote

Serpentine (rough serpentine-rich rock) (Serpentine-group minerals, chiefly antigorite and/or lizardite; composition broadly Mg₃Si₂O₅(OH)₄) — metamorphic

Serpentine (rough serpentine-rich rock)

Serpentine-group minerals, chiefly antigorite and/or lizardite; composition broadly Mg₃Si₂O₅(OH)₄

Granite (Granite, a felsic intrusive igneous rock composed chiefly of quartz, feldspar, and mica) — igneous

Granite

Granite, a felsic intrusive igneous rock composed chiefly of quartz, feldspar, and mica