Gold Ore in Quartz
Auriferous Quartz (Au + SiO2)
Category
Browse mineral (refined metal) specimens identified by the Rock Identifier community.
Gold Ore in Quartz
Auriferous Quartz (Au + SiO2)
Native Copper
Native Copper (Cu)
Limonite and Goethite on Gossan
FeO(OH)·nH2O
Pink faceted gemstone, likely amethyst or pink quartz
Quartz (SiO₂), likely pale amethyst; exact identification requires testing
Pink Granite
Granite (Phaneritic Quartz-Feldspar rock)
Polished smoky quartz or brown chalcedony pebble
Silicon dioxide (SiO₂), likely quartz/chalcedony with iron-oxide inclusions
Indeterminate metallic mineral fragments
Possibly pyrite, chalcopyrite, or metallic sulfide-bearing rock
Pyrite
Iron Disulfide (FeS2)
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Limonite and Goethite encrusted Quartz (Iron-stained Gossan)
FeO(OH)·nH2O (Limonite) / FeO(OH) (Goethite) on SiO2 (Quartz)
Granite
Felsic intrusive igneous rock
Costume Jewelry with Synthetic Gemstones
Synthetic Cubic Zirconia and Glass (SiO2 / ZrO2)
Opalite
Synthetic Opalite Glass / Opalized Glass
Quartz Vein in Host Rock
Crystalline Silicon Dioxide (SiO2) in Igneous/Metamorphic Matrix
Quartz Vein in Sedimentary Matrix
Silicon Dioxide (SiO2) with host rock
Quartz Vein in Host Rock
Silicon Dioxide (SiO2) in matrix
Quartz (Clear or Milky)
Silicon Dioxide (SiO2)
Gossan (Iron Hat) with Quartz and Chlorite
Limonite/Goethite-rich Gossan (FeO(OH)·nH2O) with inclusions of Quartz and Chlorite
Polished native copper
Native copper (Cu), likely with cuprite/tenorite oxidation products
Turquoise inlay ring
Turquoise, CuAl₆(PO₄)₄(OH)₈·4H₂O
Cubic Zirconia (Diamond Simulant)
Zirconium Dioxide (ZrO2)
Emerald and Diamond (Jewelry Setting)
Beryl (Be3Al2Si6O18 with Chromium/Vanadium impurities) and Carbon (C)
Lavender Quartz (appearing as beads) and Druzy Quartz
Silicon Dioxide (SiO2)
Quartz Vein in Host Rock (Gossanous Matrtix)
Silicon Dioxide (SiO2) with iron oxides (Limonite/Hematite)
Green Slag Glass
Amorphous Silica Glass (Anthropogenic)
Blue glass-like bead or gemstone keychain ornament
Indeterminate; likely cobalt-blue glass or synthetic blue spinel, not identifiable as a natural mineral from the image
Copper Ore (with Malachite/Chrysocolla and Iron Oxides)
Secondary Copper Minerals (Cu2(CO3)(OH)2 / (Cu,Al)2H2Si2O5(OH)4·nH2O)
Granite
Intrusive igneous rock
Serpentinite
Serpentinite (Mg, Fe, Ni, Al, Zn, Mn)2-3(Si, Al, Fe)2O5(OH)4
Opalite
Synthetic Glass (SiO2 + impurities)
Blue Calcite
Calcite (Calcium Carbonate, CaCO3)
Limonite (Gossan)
FeO(OH)·nH2O (Hydrated Iron Oxide)
Turquoise cabochon ring
Turquoise — hydrated copper aluminum phosphate, CuAl₆(PO₄)₄(OH)₈·4H₂O
Amethyst and clear gemstone ring
Amethyst (purple quartz, SiO₂), likely set with colorless quartz or glass accents
Pyrite (on a metal substrate)
Iron Sulfide (FeS2)
Diamond (set in jewelry)
Diamond (Carbon, C)
Diamond (in a gold ring)
Diamond (pure carbon, C)
Amethyst ring
Amethyst, purple quartz (SiO₂)
Bismuth Crystal
Bismuth (element symbol Bi, atomic number 83)
Pyrite in Matrix
Iron Sulfide (FeS2)
Native gold nugget or flake
Native gold (Au), possibly with minor silver/electrum
Sunstone
Plagioclase Feldspar (Na,Ca)(Al,Si)4O8