Rock Identifier

Category

Mineral, Metal (Element)

Browse mineral, metal (element) specimens identified by the Rock Identifier community.

Learn about Mineral, Metal (Element) in the encyclopedia

Sulfur

Carbonatite

Cassiterite

Euxenite

Sperrylite

Brookite

Pyrite

Acanthite

Aventurine Feldspar

Aventurine Feldspar

Galena

Bronzite

Gold Sheen Obsidian

Black tourmaline (likely schorl), polished cabochon (Schorl tourmaline, NaFe3Al6(BO3)3Si6O18(OH)4) — mineral

Black tourmaline (likely schorl), polished cabochon

Schorl tourmaline, NaFe3Al6(BO3)3Si6O18(OH)4

Milky Quartz (Quartz (Silica / Silicon Dioxide - SiO2)) — mineral

Milky Quartz

Quartz (Silica / Silicon Dioxide - SiO2)

Beryl (Aquamarine) (Beryllium aluminum silicate (Be3Al2Si6O18)) — mineral

Beryl (Aquamarine)

Beryllium aluminum silicate (Be3Al2Si6O18)

Titanium Aura Quartz (Titanium-coated Silicon Dioxide (SiO2)) — gemstone

Titanium Aura Quartz

Titanium-coated Silicon Dioxide (SiO2)

Weathered gold-bearing quartz vein fragment (Quartz (SiO₂) with probable iron oxides and sulfide/mineral inclusions) — mineral

Weathered gold-bearing quartz vein fragment

Quartz (SiO₂) with probable iron oxides and sulfide/mineral inclusions

Granite (Granite (Felsic Plutonic Rock)) — igneous

Granite

Granite (Felsic Plutonic Rock)

Serpentinite (Serpentinite (Mg, Fe, Ni, Al, Zn, Mn)2-3(Si, Al, Fe)2O5(OH)4) — metamorphic

Serpentinite

Serpentinite (Mg, Fe, Ni, Al, Zn, Mn)2-3(Si, Al, Fe)2O5(OH)4

Polished moss agate pendant (Moss agate, a chalcedony variety of microcrystalline quartz (SiO₂), with green chlorite/actinolite inclusions) — mineral

Polished moss agate pendant

Moss agate, a chalcedony variety of microcrystalline quartz (SiO₂), with green chlorite/actinolite inclusions

Emerald in Matrix (Beryl (Be3Al2Si6O18) containing Chromium/Vanadium impurities) — mineral

Emerald in Matrix

Beryl (Be3Al2Si6O18) containing Chromium/Vanadium impurities

Quartz Vein in Host Rock (Silicon Dioxide (SiO2) in matrix) — mineral

Quartz Vein in Host Rock

Silicon Dioxide (SiO2) in matrix

Granite Boulder (Felsic Intrusive Igneous Rock) — igneous

Granite Boulder

Felsic Intrusive Igneous Rock

Green aventurine pendant (likely) (Quartz, SiO₂, with green fuchsite inclusions (aventurescent quartz)) — mineral

Green aventurine pendant (likely)

Quartz, SiO₂, with green fuchsite inclusions (aventurescent quartz)

Gossan (Limonite/Ironstone) (Hydrated Iron Oxide (FeO(OH)·nH2O)) — sedimentary

Gossan (Limonite/Ironstone)

Hydrated Iron Oxide (FeO(OH)·nH2O)

Granite (Phaneritic Felsic Igneous Rock) — igneous

Granite

Phaneritic Felsic Igneous Rock

Limonite-stained Quartz (Silicon Dioxide (SiO2) with Hydrated Iron Oxide (FeO(OH)·nH2O) coatings) — mineral

Limonite-stained Quartz

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

Gold Ore in Quartz (Native Gold (Au) in Quartz (SiO2) matrix) — mineral

Gold Ore in Quartz

Native Gold (Au) in Quartz (SiO2) matrix

Lapis lazuli bead bracelet (Lapis lazuli, chiefly lazurite (Na₃Ca(Si₃Al₃)O₁₂S); commonly with calcite and pyrite) — metamorphic

Lapis lazuli bead bracelet

Lapis lazuli, chiefly lazurite (Na₃Ca(Si₃Al₃)O₁₂S); commonly with calcite and pyrite

Sandstone (Quartzose) (Arenite (predominantly SiO2)) — sedimentary

Sandstone (Quartzose)

Arenite (predominantly SiO2)

Native gold-bearing quartz vein specimen (Native gold (Au) in quartz, with possible iron-oxide and sulfide minerals) — mineral

Native gold-bearing quartz vein specimen

Native gold (Au) in quartz, with possible iron-oxide and sulfide minerals

Granite (Intrusive Igneous Rock) — igneous

Granite

Intrusive Igneous Rock

Quartz Vein in Siltstone (SiO2 (Quartz) on clastic sedimentary matrix) — sedimentary

Quartz Vein in Siltstone

SiO2 (Quartz) on clastic sedimentary matrix

Pallasite Meteorite (Sliced and Polished) (Pallasite (Iron-Nickel Matrix with Olivine crystals)) — mineral

Pallasite Meteorite (Sliced and Polished)

Pallasite (Iron-Nickel Matrix with Olivine crystals)

Peacock Ore (Chalcopyrite) (Chalcopyrite (CuFeS2)) — mineral

Peacock Ore (Chalcopyrite)

Chalcopyrite (CuFeS2)

Native Copper (Copper (Cu)) — mineral

Native Copper

Copper (Cu)

Blue-green faceted pendant stone (Undetermined; possibly synthetic glass or a blue-green gemstone such as topaz or quartz) — gemstone

Blue-green faceted pendant stone

Undetermined; possibly synthetic glass or a blue-green gemstone such as topaz or quartz

Quartz-veined Metamorphic Rock (Quartz Vein in Phyllite or Schist (SiO2 in Silicate Matrix)) — metamorphic

Quartz-veined Metamorphic Rock

Quartz Vein in Phyllite or Schist (SiO2 in Silicate Matrix)

Granite (Granite (felsic intrusive igneous rock)) — igneous

Granite

Granite (felsic intrusive igneous rock)

Rhodochrosite (Beads) and Citrine (Pendant) (Rhodochrosite (MnCO3) and Quartz variety Citrine (SiO2)) — mineral

Rhodochrosite (Beads) and Citrine (Pendant)

Rhodochrosite (MnCO3) and Quartz variety Citrine (SiO2)

Quartz vein in Host Rock (Crystalline Silicon Dioxide (SiO2) in Lithic Matrix) — metamorphic

Quartz vein in Host Rock

Crystalline Silicon Dioxide (SiO2) in Lithic Matrix

Bismuth crystal (Bismuth (Bi), commonly laboratory-grown hopper crystal) — mineral

Bismuth crystal

Bismuth (Bi), commonly laboratory-grown hopper crystal

Polished banded agate, likely moss or dendritic agate (Microcrystalline quartz (chalcedony), SiO₂, with iron/manganese inclusions) — mineral

Polished banded agate, likely moss or dendritic agate

Microcrystalline quartz (chalcedony), SiO₂, with iron/manganese inclusions

Gold Nugget (Native Gold (Au)) — mineral

Gold Nugget

Native Gold (Au)

Granite (Intrusive igneous rock) — igneous

Granite

Intrusive igneous rock

Milky Quartz (Silicon Dioxide (SiO2)) — mineral

Milky Quartz

Silicon Dioxide (SiO2)

Zircon (Zircon (Zirconium Silicate - ZrSiO4)) — mineral

Zircon

Zircon (Zirconium Silicate - ZrSiO4)

Lepidolite (K(Li,Al)3(Al,Si,3O10)(F,OH)2) — mineral

Lepidolite

K(Li,Al)3(Al,Si,3O10)(F,OH)2

Quartz Pebble (Silicon Dioxide (SiO2)) — mineral

Quartz Pebble

Silicon Dioxide (SiO2)

Milky Quartz (Silicon Dioxide (SiO2)) — mineral

Milky Quartz

Silicon Dioxide (SiO2)

Lepidolite (K(Li,Al)3(Al,Si,Rb,Cs)4O10(F,OH)2) — mineral

Lepidolite

K(Li,Al)3(Al,Si,Rb,Cs)4O10(F,OH)2

Orange Calcite with Siderite/Iron Oxide Coating (Calcium Carbonate (CaCO3)) — mineral

Orange Calcite with Siderite/Iron Oxide Coating

Calcium Carbonate (CaCO3)

Goethite / Limonite Gossan (Hydrated Iron Oxide (FeO(OH))) — sedimentary

Goethite / Limonite Gossan

Hydrated Iron Oxide (FeO(OH))

Quartz vein in dark host rock (Milky quartz (SiO₂) in an unidentified dark metamorphic host, possibly amphibolite or schist) — metamorphic

Quartz vein in dark host rock

Milky quartz (SiO₂) in an unidentified dark metamorphic host, possibly amphibolite or schist