Rock Identifier

Category

Mineral (Native Element Alloy)

Browse mineral (native element alloy) specimens identified by the Rock Identifier community.

Learn about Mineral (Native Element Alloy) in the encyclopedia

Sulfur

Copper

Gold

Platinum

Silver

Glauconite

Hutcheonite

Halite

Sperrylite

Baddeleyite

Anatase

Brookite

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

Turquoise

Turquoise, CuAl6(PO4)4(OH)8·4H2O

Vanadinite (Lead Chlorovanadate, Pb5(VO4)3Cl) — mineral

Vanadinite

Lead Chlorovanadate, Pb5(VO4)3Cl

Gold (Aurum (Au)) — Mineral (Metal)

Gold

Aurum (Au)

Mineral (Metal)

Aquamarine (Beryl (Be3Al2Si6O18)) — mineral

Aquamarine

Beryl (Be3Al2Si6O18)

Gold and Silver (in jewelry form) (Gold (Au) and Silver (Ag)) — mineral

Gold and Silver (in jewelry form)

Gold (Au) and Silver (Ag)

Orange calcite (likely honey calcite) (Calcite, calcium carbonate (CaCO₃)) — mineral

Orange calcite (likely honey calcite)

Calcite, calcium carbonate (CaCO₃)

Tumbled agate/chalcedony (Microcrystalline quartz (SiO₂), likely agate with iron-oxide and other mineral inclusions) — mineral

Tumbled agate/chalcedony

Microcrystalline quartz (SiO₂), likely agate with iron-oxide and other mineral inclusions

White Topaz (Al2SiO4(F,OH)2) — mineral

White Topaz

Al2SiO4(F,OH)2

Blue Quartz (Silicon Dioxide (SiO2) with fibrous inclusions (such as tourmaline, magnesio-riebbeckite, or crocidolite)) — mineral

Blue Quartz

Silicon Dioxide (SiO2) with fibrous inclusions (such as tourmaline, magnesio-riebbeckite, or crocidolite)

Blue Celestine (Celestine (SrSO4)) — mineral

Blue Celestine

Celestine (SrSO4)

Celestite (Celestine) (Strontium sulfate (SrSO4)) — mineral

Celestite (Celestine)

Strontium sulfate (SrSO4)

Unknown metallic sulfide-bearing rock, possibly chalcopyrite or bornite (Tentative: chalcopyrite (CuFeS₂) or bornite (Cu₅FeS₄)) — mineral

Unknown metallic sulfide-bearing rock, possibly chalcopyrite or bornite

Tentative: chalcopyrite (CuFeS₂) or bornite (Cu₅FeS₄)

Celestite (Celestine) (Strontium sulfate (SrSO4)) — mineral

Celestite (Celestine)

Strontium sulfate (SrSO4)

Iron Meteorite (Meteoritic Iron (Fe-Ni alloy)) — meteorite

Iron Meteorite

Meteoritic Iron (Fe-Ni alloy)

Nickel coin (U.S. currency) (Cupronickel (75% Copper, 25% Nickel alloy)) — man-made alloy (metallic)

Nickel coin (U.S. currency)

Cupronickel (75% Copper, 25% Nickel alloy)

man-made alloy (metallic)

Ferrochrome Slag (Calcium-Aluminium-Magnesium Silicate Slag) — industrial byproduct

Ferrochrome Slag

Calcium-Aluminium-Magnesium Silicate Slag

industrial byproduct

Quartz-bearing feldspar pegmatite (likely with mica/tourmaline) (Granitic pegmatite; chiefly quartz (SiO₂) and feldspar, with dark mica or tourmaline) — igneous

Quartz-bearing feldspar pegmatite (likely with mica/tourmaline)

Granitic pegmatite; chiefly quartz (SiO₂) and feldspar, with dark mica or tourmaline

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

Rainbow Fluorite

Fluorite (Calcium Fluoride, CaF2)

Amazonite (microcline feldspar) (K(AlSi3O8) - Potassium Aluminum Silicate) — mineral

Amazonite (microcline feldspar)

K(AlSi3O8) - Potassium Aluminum Silicate

Sunstone (Plagioclase Feldspar (Na,Ca)(Si,Al)3O8) — mineral

Sunstone

Plagioclase Feldspar (Na,Ca)(Si,Al)3O8

Pegmatitic granite (likely feldspar–quartz–mica rock) (Granitic pegmatite; chiefly K-feldspar and quartz, with mica and iron-oxide staining) — igneous

Pegmatitic granite (likely feldspar–quartz–mica rock)

Granitic pegmatite; chiefly K-feldspar and quartz, with mica and iron-oxide staining

Quartz-rich pegmatite specimen (Pegmatite, composed mainly of quartz (SiO₂), with probable feldspar and mica) — igneous

Quartz-rich pegmatite specimen

Pegmatite, composed mainly of quartz (SiO₂), with probable feldspar and mica

Vanadinite (Lead Chlorovanadate - Pb5(VO4)3Cl) — mineral

Vanadinite

Lead Chlorovanadate - Pb5(VO4)3Cl

Amygdaloidal Basalt (Amygdaloidal Basalt (Mafic Extrusive volcanic rock)) — igneous

Amygdaloidal Basalt

Amygdaloidal Basalt (Mafic Extrusive volcanic rock)

Bismuth Crystal (Bismuth (Bi)) — mineral

Bismuth Crystal

Bismuth (Bi)

Diamond (Diamond (pure Carbon, C)) — mineral

Diamond

Diamond (pure Carbon, C)

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

Turquoise

CuAl6(PO4)4(OH)8·4H2O

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

Turquoise

CuAl6(PO4)4(OH)8·4H2O

Iron Meteorite (likely Chondrite or weathered Iron-Nickel) (Meteorite (Fe-Ni alloy & silicates)) — igneous

Iron Meteorite (likely Chondrite or weathered Iron-Nickel)

Meteorite (Fe-Ni alloy & silicates)

Diamond (Carbon (C)) — gemstone

Diamond

Carbon (C)

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

Rainbow Fluorite

Fluorite (Calcium Fluoride, CaF2)

Diamond (or Diamond Simulant) (Carbon (C)) — mineral

Diamond (or Diamond Simulant)

Carbon (C)

Pegmatitic mica-quartz-feldspar specimen (Granitic pegmatite, chiefly quartz (SiO₂), feldspar, and muscovite/biotite mica) — igneous

Pegmatitic mica-quartz-feldspar specimen

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

Tumbled copper-bearing rock, likely cuprite-rich matrix (Cuprite (Cu₂O) with native copper and iron-oxide matrix; visual identification is provisional) — mineral

Tumbled copper-bearing rock, likely cuprite-rich matrix

Cuprite (Cu₂O) with native copper and iron-oxide matrix; visual identification is provisional

Native gold in quartz (probable) (Gold (Au), with quartz (SiO₂) matrix) — mineral

Native gold in quartz (probable)

Gold (Au), with quartz (SiO₂) matrix

Vanadinite (Pb5(VO4)3Cl) — mineral

Vanadinite

Pb5(VO4)3Cl

Pink Granite (Phaneritic Igneous Rock (high K-Feldspar content)) — igneous

Pink Granite

Phaneritic Igneous Rock (high K-Feldspar content)

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 and Red Coral (with Grizzly Bear Claw) (Turquoise (CuAl6(PO4)4(OH)8·4H2O) and Precious Coral (Corallium rubrum)) — mineral

Turquoise and Red Coral (with Grizzly Bear Claw)

Turquoise (CuAl6(PO4)4(OH)8·4H2O) and Precious Coral (Corallium rubrum)

Likely raw gold-bearing rock or native gold specimen (Possibly native gold (Au); identification is uncertain from the image) — mineral

Likely raw gold-bearing rock or native gold specimen

Possibly native gold (Au); identification is uncertain from the image

Moqui Marble (Hematite-Goethite Concretion) — mineral

Moqui Marble

Hematite-Goethite Concretion

Molybdenite in Quartz (Molybdenite (MoS2) with Quartz (SiO2)) — mineral

Molybdenite in Quartz

Molybdenite (MoS2) with Quartz (SiO2)