Granite
Intrusive Igneous Rock (composed primarily of quartz, alkali feldspar, and plagioclase)
Category
Browse mineral (refined metal) specimens identified by the Rock Identifier community.
Granite
Intrusive Igneous Rock (composed primarily of quartz, alkali feldspar, and plagioclase)
Granite
Intrusive Igneous Rock (Felsic)
Granite
Intrusive Igneous Rock
Lepidolite
K(Li,Al)3(Si,Al)4O10(F,OH)2
Pyrite
Iron Sulfide (FeS2)
Milky Quartz with inclusions
Silicon Dioxide (SiO2)
Granite
Intrusive Igneous Rock
Milky Quartz
Quartz (Silicon Dioxide - SiO2)
Limonite (Ironstone)
Limonite (FeO(OH)·nH2O)
Native Copper with Malachite/Oxide Coating
Native Copper (Cu)
Slag (Industrial By-product)
Anthropogenic Vitreous Silica/Iron Silicate
Diamond (Cluster Ring)
Carbon (C)
Gold Nugget
Native Gold (Au)
Granite
Intrusive Igneous Rock
Celestine (Celestite)
Celestine (Strontium Sulfate, SrSO4)
Lepidolite
K(Li,Al)3(Al,Si,Rb)4O10(F,OH)2
Sulfide Ore (likely Galena and Sphalerite in Quartz)
Lead-Zinc Ore (PbS and ZnS)
Bismuthinite with Chalcopyrite and Quartz
Bismuthinite (Bi2S3) and Chalcopyrite (CuFeS2)
Quartz Vein / Quartz Matrix
Silicon Dioxide (SiO2)
Slag (Industrial Byproduct)
Ferrous/Non-ferrous Silicate
Gold Nugget
Gold (Au)
Serpentine
(Mg,Fe)3Si2O5(OH)4
Gold-Bearing Quartz
Silicon Dioxide with Native Gold (SiO2 + Au)
Opalite
Synthetic glass / Opaque silicious glass
Granite
Intrusive igneous rock composed mainly of quartz, alkali feldspar, and plagioclase
Vanadinite
Vanadinite (Pb5(VO4)3Cl)
Granite
Felsic intrusive igneous rock
Pyrite in Quartz
Silicon Dioxide (SiO2) with Iron Sulfide (FeS2)
Granite
Plutonic Igneous Rock
Serpentinite
Serpentinite (Mg, Fe, Ni, Al, Zn, Mn)2-3(Si, Al, Fe)2O5(OH)4
Pyrite
Iron Sulfide (FeS2)
Olivine
(Mg,Fe)2SiO4
Milky Quartz with Iron Staining
Silicon Dioxide (SiO2)
Bauxite
Bauxite (Al2O3·2H2O mixed with iron oxides)
Limonite (Iron Stone/Iron Ore)
FeO(OH)·nH2O (Hydrous ferric oxide)
Green Aura Quartz (Titanium treated Kyanite or Quartz)
Silicon Dioxide (SiO2) or Aluminum Silicate (Al2SiO5) with Titanium/Metal Oxide coating
Lepidolite
K(Li,Al)3(Al,Si,Rb,Cs)4O10(F,OH)2
Bornite
Cu5FeS4
Celestite (Celestine)
Strontium sulfate (SrSO4)
Copper Ore with Malachite and Chrysocolla
Cu2CO3(OH)2 (Malachite) with Cu2-xAlx(H2-xSi2O5)(OH)4·nH2O (Chrysocolla)
Celestite (Celestine)
Strontium sulfate (SrSO4)
Limonite-stained Gossan/Ironstone
Goethite and Hematite (Fe2O3 • nH2O)