Bauxite
Bauxite (Al(OH)3, AlO(OH), AlOOH)
Category
Browse mineral (refined metal) specimens identified by the Rock Identifier community.
Bauxite
Bauxite (Al(OH)3, AlO(OH), AlOOH)
Bauxite
Bauxite (Al(OH)3, AlO(OH))
Aura Quartz Bead
Silicon dioxide (SiO2) with metal coating
Quartz Vein in Pelite (Metamorphic Rock)
Hydrothermal Quartz Veining in Metasedimentary Rock (SiO2)
Yellow Beryl (Heliodor)
Beryllium aluminum silicate (Be3Al2Si6O18)
Quartz Pebble
Silicon Dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Copper Ore (likely Malachite or Chrysocolla staining)
Copper Secondary Mineral (e.g., Cu2CO3(OH)2)
Beryl in Quartz Matrix
Beryllium Aluminum Silicate (Be3Al2Si6O18)
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Bauxite
Bauxite (Al2O3·2H2O)
Bauxite
Aluminium ore (Hydrated aluminium oxides AlOx(OH)3-2x)
Granite
Intrusive igneous rock
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Lepidolite
K(Li,Al)3(Al,Si,3O10)(F,OH)2
Copper Ore with Malachite and Chalcocite
Copper-bearing Mineral Assemblage (Cu2CO3(OH)2 + Cu2S)
Beryl (likely var. Aquamarine or Goshenite) in Matrix
Beryllium Aluminum Silicate (Be3Al2Si6O18)
Marble
Recrystallized Calcite (CaCO3)
Milky Quartz
Silicon Dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Slag
Ferrous slag (by-product of iron smelting)
Yellow Ochre / Limonite
Limonite (FeO(OH)·nH2O)
Quartz-rich hydrothermal ore rock, likely gold-bearing quartz vein
Milky quartz (SiO₂) with iron-oxide staining and probable sulfide minerals; host rock may be schist or altered granite
Mystic Topaz (Treated Quartz or Topaz)
Aluminum silicate fluoride hydroxide [Al2SiO4(F,OH)2] with thin-film metallic coating
Granite
Granite (Intrusive Igneous Rock)
Native Gold Flake
Gold (Au)
Aura Quartz Geode
Titanium/Gold bonded Quartz (SiO2 with metallic coating)
Bauxite
Al2O3·2H2O (Aluminum Hydroxide)
Lepidolite in Quartz (Lithium-bearing Ore)
Lepidolite (K(Li,Al)3(Al,Si,Rb)4O10(F,OH)2) and Quartz (SiO2)
Colorless Quartz (Rhinestone)
Silicon Dioxide (SiO2)
Quartz Vein in Host Rock
Hydrothermal Quartz (SiO2) in Slates/Schists
Granite
Intrusive Igneous Rock (Felsic)
Granite
Felsic intrusive igneous rock
Gossan (Iron Hat)
Limonitic Gossan (predominantly FeO(OH)·nH2O)
Granite
Intrusive Igneous Rock
Granite
Intrusive Igneous Rock
Copper Ore (with Azurite and Malachite)
Cuprite, Azurite (Cu3(CO3)2(OH)2), Malachite (Cu2(CO3)(OH)2)
Granite
Phaneritic Felsic Intrusive Igneous Rock
Pyrite in Quartz
FeS2 (Iron Pyrite) with SiO2 (Quartz)
Amygdaloidal Basalt
Extrusive mafic igneous rock with amygdules
Gossan / Iron Ore Rock
Hematite / Goethite / Limonite iron oxide assemblage
Quartz Vein / Milky Quartz
Silicon Dioxide (SiO2)