Quartz Pebble
Crystalline Silicon Dioxide (SiO2)
mineral
Category
Metamorphic
Browse metamorphic specimens identified by the Rock Identifier community.
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Clear Quartz Crystal
Quartz (Silicon Dioxide, SiO2)
mineral
Quartz (Iron-stained)
Silicon Dioxide (SiO2)
mineral
Quartz (Smoky/Rock Crystal)
Silicon Dioxide (SiO2)
mineral
Orange Calcite
Calcium Carbonate (CaCO3)
mineral
Smoky Quartz (Tumbled)
Silicon Dioxide (SiO2)
mineral
Hematite
Iron (III) Oxide (Fe2O3)
mineral
Emerald
Beryl (Be3Al2Si6O18 with Chromium/Vanadium impurities)
mineral
Amethyst
Silicon Dioxide (SiO2) with iron impurities
gemstone
Sodalite
Sodalite (Na8(Al6Si6O24)Cl2)
mineral
Citrine or Yellow Quartz
Quartz (SiO2) with iron impurities
mineral
Green Aventurine
Aventurine Quartz (SiO2 + Fuchsite inclusions)
mineral
Blue Zircon
Zircon (Zirconium Silicate), ZrSiO4
gemstone
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Agate
SiO2
Mineral/Gemstone
Banded Agate
Agate (Cryptocrystalline Quartz, SiO2)
mineral
Aquamarine (Beryl)
Beryllium aluminum silicate (Be3Al2Si6O18)
mineral
Quartz
Silicon Dioxide (SiO2)
mineral
Serpentinite
Serpentinite (composed primarily of Serpentine group minerals: (Mg,Fe)3Si2O5(OH)4)
metamorphic
Sodalite
Sodalite (Na8(Al6Si6O24)Cl2)
mineral
Green Aventurine
Silicon Dioxide (Quartz) with Fuchsite inclusions (SiO2 + K(Al,Cr)2AlSi3O10(OH)2)
metamorphic
Blue Apatite
Apatite, Ca5(PO4)3(F,Cl,OH)
mineral
Citrine Quartz
Silicon Dioxide (SiO2) with iron impurities
mineral
Citrine Quartz
Silicon Dioxide (SiO2)
mineral
Tiger's Eye
Pseudomorph of Quartz after Crocidolite (SiO2)
metamorphic
Bornite (Peacock Ore)
Bornite (Cu5FeS4)
mineral
Smoky Quartz
Silicon Dioxide (SiO2)
mineral
Chalcopyrite
Chalcopyrite (CuFeS2)
mineral
Jade (Jadeite or Nephrite)
Jadeite (NaAlSi2O6) or Nephrite (Ca2(Mg,Fe)5Si8O22(OH)2)
metamorphic
Aquamarine
Beryl (Be3Al2Si6O18)
mineral
Serpentinite
Serpentinite (composed primarily of Serpentine group minerals: (Mg,Fe)3Si2O5(OH)4)
metamorphic
Sodalite
Sodium Aluminum Silicate Chloride (Na8(Al6Si6O24)Cl2)
mineral
Agate
Chalcedony (Microcrystalline Quartz) - SiO2
Mineral
Pyrite
Iron Sulfide (FeS2)
mineral
Hypersthene
Enstatite (Hypersthene variety), (Mg,Fe)SiO3
mineral
Black Tourmaline
Schorl (Sodium Iron Aluminum Borosilicate Hydroxide), NaFe3Al6(BO3)3Si6O18(OH)4
mineral
Pyrite
Iron Sulfide (FeS2)
mineral
Bornite (Peacock Ore)
Bornite (Cu5FeS4)
mineral
Clear Quartz
Silicon Dioxide (SiO2)
mineral
Muscovite Mica
Muscovite (KAl2(AlSi3O10)(F,OH)2)
mineral
Green Calcite
Calcium Carbonate (CaCO3)
mineral
Peacock Ore (Bornite or Iridescent Chalcopyrite)
Bornite (Cu5FeS4) or Chalcopyrite (CuFeS2) with tarnish
mineral