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

Native Copper (Penny specimen) (Native Copper (Cu)) — mineral

Native Copper (Penny specimen)

Native Copper (Cu)

Decorative gemstone-chip jewelry (likely turquoise, coral, and assorted beads) (Predominantly turquoise, CuAl₆(PO₄)₄(OH)₈·4H₂O; other pieces appear to be dyed coral or red stone, and possibly shell/metal components) — gemstone

Decorative gemstone-chip jewelry (likely turquoise, coral, and assorted beads)

Predominantly turquoise, CuAl₆(PO₄)₄(OH)₈·4H₂O; other pieces appear to be dyed coral or red stone, and possibly shell/metal components

Sandstone (Whetstone/Sharpening Stone) (Siliciclastic Sandstone (SiO2 dominant)) — sedimentary

Sandstone (Whetstone/Sharpening Stone)

Siliciclastic Sandstone (SiO2 dominant)

Amygdaloidal Basalt (Basalt with secondary mineral infilling) — igneous

Amygdaloidal Basalt

Basalt with secondary mineral infilling

Milky Quartz (Silicon Dioxide (SiO2)) — mineral

Milky Quartz

Silicon Dioxide (SiO2)

Granite Pebble with Quartz Vein (Granite (Plutonic Igneous Rock) with Quartz (SiO2)) — igneous

Granite Pebble with Quartz Vein

Granite (Plutonic Igneous Rock) with Quartz (SiO2)

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

Quartz vein in metamorphic rock

Crystalline Silicon Dioxide (SiO2) in Host Rock

Green Schist (Greenschist (Chlorite Schist)) — metamorphic

Green Schist

Greenschist (Chlorite Schist)

Native Copper Nugget (Native Copper (Cu)) — mineral

Native Copper Nugget

Native Copper (Cu)

Beryl (Aquamarine) (Be3Al2Si6O18) — mineral

Beryl (Aquamarine)

Be3Al2Si6O18

Bismuth (Bismuth (Bi)) — mineral

Bismuth

Bismuth (Bi)

Native gold nuggets (Gold (Au), usually with minor silver and copper) — mineral

Native gold nuggets

Gold (Au), usually with minor silver and copper

Quartz-rich metallic sulfide ore (probable pyrite-bearing rock) (Pyrite, FeS₂, in a quartz-rich host; exact identification is uncertain from the image) — mineral

Quartz-rich metallic sulfide ore (probable pyrite-bearing rock)

Pyrite, FeS₂, in a quartz-rich host; exact identification is uncertain from the image

Gossan (Iron Cap) (Limonitic Gossan (Fe2O3·nH2O mixed)) — sedimentary

Gossan (Iron Cap)

Limonitic Gossan (Fe2O3·nH2O mixed)

Gold Nugget / Flake (Native Gold (Au)) — mineral

Gold Nugget / Flake

Native Gold (Au)

Quartz (River Pebble) (Silicon Dioxide (SiO2)) — mineral

Quartz (River Pebble)

Silicon Dioxide (SiO2)

Granite (Intrusive Igneous Rock) — igneous

Granite

Intrusive Igneous Rock

Granite (Felsic intrusive igneous rock) — igneous

Granite

Felsic intrusive igneous rock

Gossan (Iron Hat) (Hydrous Iron Oxides (predominantly Goethite FeO(OH) and Limonite)) — mineral

Gossan (Iron Hat)

Hydrous Iron Oxides (predominantly Goethite FeO(OH) and Limonite)

Milky Quartz (Silicon Dioxide (SiO2)) — mineral

Milky Quartz

Silicon Dioxide (SiO2)

Milky Quartz (Silicon Dioxide (SiO2)) — mineral

Milky Quartz

Silicon Dioxide (SiO2)

Vanadinite (Vanadinite (Pb5(VO4)3Cl)) — mineral

Vanadinite

Vanadinite (Pb5(VO4)3Cl)

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

Pink Lepidolite

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

Moss Agate (Chalcedony (SiO2) with inclusions of manganese or iron oxides) — mineral

Moss Agate

Chalcedony (SiO2) with inclusions of manganese or iron oxides

Moss Agate (Silicon dioxide (SiO2) with inclusions) — Mineral

Moss Agate

Silicon dioxide (SiO2) with inclusions

Cubic Zirconia (Jewelry Setting) (Zirconium Dioxide (ZrO2)) — gemstone

Cubic Zirconia (Jewelry Setting)

Zirconium Dioxide (ZrO2)

Chromite (Chromite (FeCr2O4)) — mineral

Chromite

Chromite (FeCr2O4)

Beryl (Aquamarine) (Beryllium Aluminum Cyclosilicate (Be3Al2Si6O18)) — mineral

Beryl (Aquamarine)

Beryllium Aluminum Cyclosilicate (Be3Al2Si6O18)

Milky Quartz (Silicon Dioxide (SiO2)) — mineral

Milky Quartz

Silicon Dioxide (SiO2)

Milky Quartz (Silicon Dioxide (SiO2)) — mineral

Milky Quartz

Silicon Dioxide (SiO2)

Granite (Felsic intrusive igneous rock) — igneous

Granite

Felsic intrusive igneous rock

Sandstone (Ferruginous) (Arenite with Iron-Oxide Cement (primarily SiO2 with Fe2O3/FeOOH)) — sedimentary

Sandstone (Ferruginous)

Arenite with Iron-Oxide Cement (primarily SiO2 with Fe2O3/FeOOH)

Sandstone (Arenite (SiO2 based)) — sedimentary

Sandstone

Arenite (SiO2 based)

Amethyst cabochon ring (Amethyst, purple quartz (SiO₂), colored primarily by iron-related defects and irradiation) — gemstone

Amethyst cabochon ring

Amethyst, purple quartz (SiO₂), colored primarily by iron-related defects and irradiation

Diamond (Carbon (C)) — mineral

Diamond

Carbon (C)

Granite (Felsic intrusive igneous rock) — igneous

Granite

Felsic intrusive igneous rock

Granite (Felsic intrusive igneous rock) — igneous

Granite

Felsic intrusive igneous rock

Granite and Porphyry Pebbles (Intrusive Igneous Rock) — igneous

Granite and Porphyry Pebbles

Intrusive Igneous Rock

Fluorite Bracelet (Calcium Fluoride (CaF2)) — mineral

Fluorite Bracelet

Calcium Fluoride (CaF2)

Beryl (likely Emerald or Aquamarine in matrix) (Beryllium aluminum silicate (Be3Al2Si6O18)) — mineral

Beryl (likely Emerald or Aquamarine in matrix)

Beryllium aluminum silicate (Be3Al2Si6O18)

Biotite-rich mica schist (Mica schist, dominated by biotite mica (K(Mg,Fe)₃AlSi₃O₁₀(F,OH)₂), with probable quartz and feldspar) — metamorphic

Biotite-rich mica schist

Mica schist, dominated by biotite mica (K(Mg,Fe)₃AlSi₃O₁₀(F,OH)₂), with probable quartz and feldspar

Banded Calcite (Mexican Onyx) (Calcium Carbonate (CaCO3)) — mineral

Banded Calcite (Mexican Onyx)

Calcium Carbonate (CaCO3)