Gold Nugget
Native Gold (Au)
mineral
Category
Metal (Elemental Mineral)
Browse metal (elemental mineral) specimens identified by the Rock Identifier community.
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Pyrite
Iron Sulfide (FeS2)
mineral
Milky Quartz in Gneiss
Quartzite / Foliated Gneiss containing SiO2
metamorphic
Titanium Quartz (Aura Quartz)
Silicon Dioxide (SiO2) treated with Titanium
mineral
Bull Quartz (White Quartz)
Silicon Dioxide (SiO2)
mineral
Bauxite
Aluminium ore / Hydrated aluminium oxides (AlOx(OH)3-2x)
sedimentary
Lepidolite
K(Li,Al)3(Al,Si,Rb)4O10(F,OH)2
mineral
Industrial Diamond (Bort or Boart)
Diamond (pure Carbon, C)
mineral
The user-provided image does not contain a rock or mineral specimen
N/A
Copper Ore
Cupriferous Rock / Mixed Mineral Matrix
igneous
Granite
Phaneritic plutonic rock (Quartz, Feldspar, Mica)
igneous
Beryl (Emerald Variety)
Beryllium Aluminum Silicate (Be3Al2(SiO3)6)
mineral
Man-made Synthetic Material (Plastic/Composite)
Acrylonitrile Butadiene Styrene (ABS) or High-Impact Polystyrene (HIPS)
Non-geological / Synthetic
Lepidolite and Tiger's Eye
K(Li,Al)3(Si,Al)4O10(F,OH)2 (Lepidolite) / SiO2 (Quartz/Tiger's Eye)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Gold Nugget
Native Gold (Au)
mineral
Native Copper
Native Copper (Cu)
mineral
Lepidolite
K(Li,Al)3(Al,Si,Rb)4O10(F,OH)2
mineral
Pyrite
Iron Disulfide (FeS2)
mineral
Galena
Lead sulfide (PbS)
mineral
Chert (Iron-stained)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
sedimentary
Granite
Granite (Plutonic Igneous Rock)
igneous
Granitic Pegmatite
Pegmatite (Quartz: SiO2, Feldspar: KAlSi3O8, Mica: KAl2(AlSi3O10)(OH)2)
Igneous
Bauxite
Aluminum ore / Hydrated aluminum oxides
sedimentary
Quartz Vein in Host Rock
Silicon Dioxide (SiO2) within Metasedimentary or Igneous Matrix
metamorphic
Pyrite-bearing Rock
Iron Sulfide (FeS2) associated with host rock
mineral
Granite
Intrusive Igneous Rock (Mainly Quartz, Feldspar, and Mica)
igneous
Standing Liberty Quarter (Silver Specimen)
Native Silver alloy (Ag with Cu traces)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Native Copper
Native Copper (Cu)
mineral
Iron-stained quartz-bearing rock
Quartz (SiO₂), likely in a limonite/goethite-rich matrix
mineral
Amethyst Cluster
Silicon Dioxide (Quartz variety: Amethyst) - SiO2
mineral
Native Copper
Native Copper (Cu)
mineral
Pyrite
Iron Disulfide (FeS2)
mineral
Quartz Vein in Host Rock
Silicon Dioxide (SiO2) in matrix
mineral
Lepidolite
K(Li,Al)3(Al,Si,3O10)(F,OH)2
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Collection of Minerals and Ores
Various (e.g., Uraninite (U3O8), Carbon (C), Native Gold (Au), Hematite (Fe2O3), Galena (PbS), etc.)
mineral
Peridot (Olivine)
Olivine ((Mg, Fe)2SiO4)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
mineral
Aquamarine
Beryl (Be3Al2Si6O18 with iron impurities)
mineral