Granite
Intrusive Igneous Rock
igneous
Category
Mineral (Metal)
Browse mineral (metal) specimens identified by the Rock Identifier community.
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Bismuthinite with Chalcopyrite and Quartz
Bismuthinite (Bi2S3) and Chalcopyrite (CuFeS2)
mineral
Gold-Bearing Quartz
Silicon Dioxide with Native Gold (SiO2 + Au)
mineral
Lepidolite
K(Li,Al)3(Al,Si,3O10)(F,OH)2
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Peridot (Olivine)
Olivine ((Mg, Fe)2SiO4)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Aquamarine
Beryl (Be3Al2Si6O18 with iron impurities)
mineral
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
mineral
Granite
Intrusive Igneous Rock
igneous
Vanadinite
Vanadinite (Pb5(VO4)3Cl)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Pyrite
Iron Disulfide (FeS2)
mineral
Lepidolite
K(Li,Al)3(Al,Si,Rb)4O10(F,OH)2
mineral
Quartz Vein / Quartz Matrix
Silicon Dioxide (SiO2)
mineral
Granite
Felsic intrusive igneous rock
igneous
Unidentified dark mineral/rock fragment
Indeterminate; appearance may fit a sulfide-bearing rock or iron-rich mineral
mineral
Beryl (likely Aquamarine or Heliodor variant)
Beryllium aluminum cyclosilicate (Be3Al2Si6O18)
mineral
Peridot
Olivine (Magnesium Iron Silicate - (Mg, Fe)2SiO4)
mineral
Aquamarine
Beryl (Be3Al2Si6O18)
mineral
Manganese Oxide Crust on Limestone
Manganese Oxides (e.g., Pyrolusite MnO2 or Romanechite) on CaCO3
sedimentary
Native Copper
Native Copper (Cu)
mineral
Granite
Intrusive igneous rock
igneous
Tree Agate
Chalcedony (SiO2) with Dendritic inclusions
mineral
Celestite (Celestine)
Strontium sulfate (SrSO4)
mineral
Native Copper
Copper (Cu)
mineral
Serpentinite
Serpentinite (Mg, Fe, Ni, Al, Zn, Mn)2-3(Si, Al, Fe)2O5(OH)4
metamorphic
Granite Pebble
Granite
igneous
Bismuth Crystal
Bismuth (Bi)
mineral
Pyrite in Quartz
Silicon Dioxide (SiO2) with Iron Sulfide (FeS2)
mineral
Granite Pebble
Phaneritic intrusive igneous rock
igneous
Quartz Vein in Siltstone
SiO2 (Quartz) on clastic sedimentary matrix
sedimentary
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
mineral
Quartz Vein in Pelite (Metamorphic Rock)
Hydrothermal Quartz Veining in Metasedimentary Rock (SiO2)
metamorphic
Native Copper
Native Copper (Cu)
mineral
Granite
Intrusive Igneous Rock
igneous
Pyrite
Iron Sulfide (FeS2)
mineral
Granite Boulder
Felsic Intrusive Igneous Rock
igneous
Pallasite Meteorite (Sliced and Polished)
Pallasite (Iron-Nickel Matrix with Olivine crystals)
mineral
Granite
Felsic intrusive igneous rock
igneous
Yellow Beryl (Heliodor)
Beryllium aluminum silicate (Be3Al2Si6O18)
mineral
Serpentinite
Serpentinite (Mg, Fe, Ni, Al, Zn, Mn)2-3(Si, Al, Fe)2O5(OH)4
metamorphic