Amethyst
Amethyst (Quartz variety), Silicon Dioxide (SiO2)
Category
Browse mineral specimens identified by the Rock Identifier community.
Amethyst
Amethyst (Quartz variety), Silicon Dioxide (SiO2)
Peacock Ore (Bornite or Iridescent Chalcopyrite)
Bornite (Cu5FeS4) or Chalcopyrite (CuFeS2) with oxidation
Honey Calcite
Calcium Carbonate (CaCO3)
Carnelian
Carnelian (Silicon Dioxide: SiO2)
Kunzite (Pink Spodumene)
Spodumene, LiAl(SiO3)2
Amazonite
K(AlSi3O8) - Microcline (Lead-bearing variety)
Orange Calcite
Calcium Carbonate (CaCO3)
Amethyst
Silicon Dioxide (SiO2) with iron impurities
Amethyst
SiO2 (Silicon Dioxide with Iron impurities)
Citrine Quartz
Silicon Dioxide (SiO2)
Amethyst
Silicon dioxide (SiO2)
Rhodochrosite with Pyrite and Quartz
Manganese Carbonate (MnCO3)
Amazonite in Matrix
Potassium Feldspar (Microcline), KAlSi3O8
Turquoise
Hydrated phosphate of copper and aluminum (CuAl6(PO4)4(OH)8·4H2O)
Amazonite
Amazonite (KAlSi3O8, a variety of Microcline)
Fuchsite
K(Al,Cr)2(AlSi3O10)(OH)2 (Chromium-rich Muscovite)
Sunstone
Plagioclase feldspar (with Copper or Hematite inclusions)
Green Aventurine
Aventurine Quartz (SiO2 with Fuchsite inclusions)
Beryl (var. Heliodor or Aquamarine)
Beryllium Aluminum Cyclosilicate (Be3Al2Si6O18)
Garnet
Almandine (Fe3Al2(SiO4)3)
Rough Emerald
Beryl (Be3Al2(SiO3)6 with Chromium/Vanadium impurities)
Labradorite
Labradorite (Plagioclase Feldspar Series: (Ca,Na)(Al,Si)4O8)
Sodalite
Sodalite (Na8(Al6Si6O24)Cl2)
Astrophyllite
Potassium Sodium Iron Manganese Titanium Silicate Hydroxide (K3NaFe7Ti2Si8O24(OH)7)
Milky Quartz
Silicon Dioxide (SiO2)
Moonstone
Orthoclase Feldspar (KAlSi3O8)
Emerald in Host Rock
Beryl (Be3Al2Si6O18) containing Chromium and/or Vanadium
Citrine
Citrine (Silicon Dioxide - SiO2)
Precious Opal
Hydrated Silica (SiO2·nH2O)
Citrine Quartz
Citrine (Silicon Dioxide, SiO2)
Gold Ore in Quartz
Auriferous Quartz (SiO2 with Au inclusions)
Amethyst
Amethyst (Silicon Dioxide, SiO2)
Aquamarine
Beryl (Be3Al2Si6O18 with iron impurities)
Arsenopyrite
Arsenopyrite (FeAsS)
Gold Nugget
Native Gold (Au)
Amazonite
Microcline (KAlSi3O8) with lead inclusions
Lazulite
Magnesium Aluminum Phosphate Hydroxide (MgAl2(PO4)2(OH)2)
Amazonite
Potassium Feldspar (Microcline), K(AlSi3O8)
Strawberry Quartz
Silicon Dioxide (SiO2) with Hematite/Goethite inclusions
Amethyst
Amethyst (Silicon Dioxide, SiO2 with Iron impurities)
Yellow Calcite
Calcium Carbonate (CaCO3)
Rose Quartz Sphere
Silicon Dioxide (SiO2) with traces of titanium, iron, or manganese