Quartz (Milky Quartz)
Silicon Dioxide (SiO2)
mineral
Category
Mineral (Found In Igneous And Metamorphic Rocks)
Browse mineral (found in igneous and metamorphic rocks) specimens identified by the Rock Identifier community.
Green Aventurine
Silicon Dioxide (SiO2) with inclusions of Fuchsite mica
metamorphic
Sodalite
Sodalite (Na8(Al6Si6O24)Cl2)
mineral
Dalmatian Stone
Dalmatian Jasper (a misnomer) / Perthitic Igneous Rock
igneous
White Quartz (Carved or Tumbled)
Silicon Dioxide (SiO2)
mineral
Graphite
Graphite (Native Carbon, C)
metamorphic
Amethyst (Quartz)
Amethyst (Silicon Dioxide with Iron impurities), SiO2
mineral
Pyrite (Fool's Gold)
Iron Sulfide (FeS2)
mineral
Unakite
Epidotized Granite
metamorphic
Emerald in Matrix
Beryl (Be3Al2Si6O18) containing Chromium/Vanadium impurities
mineral
Banded Agate
Cryptocrystalline Quartz (SiO2)
mineral
Granite
Granite
Igneous
Rough Emerald/Green Beryl
Beryl (Be3Al2(SiO3)6) with trace amounts of Chromium or Vanadium
mineral
Quartz (Milky/Cloudy Variety)
Silicon Dioxide (SiO2)
mineral
Marble
Recrystallized Calcite (CaCO3)
metamorphic
Gneiss (Granitic Gneiss)
Gneiss
metamorphic
Rose Quartz
Silicon Dioxide (SiO2)
mineral
Peridot
Olivine ((Mg, Fe)2SiO4)
mineral
Carnelian Agate
Silicon Dioxide (SiO2) - variety of Chalcedony
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Olivine
(Mg,Fe)2SiO4 (Magnesium Iron Silicate)
mineral
Opal
Hydrated Amorphous Silica (SiO2·nH2O)
Mineral
Quartz Vein in Host Rock
Silicon Dioxide (SiO2) in matrix
Mineral in Metamorphic/Igneous Host
Amethyst (Quartz)
Silicon Dioxide (SiO2) with iron impurities
mineral
Olivine (Peridotite)
(Mg,Fe)2SiO4 (Magnesium Iron Silicate)
igneous
Lapis Lazuli
Lapis Lazuli (a rock composed primarily of Lazurite)
Metamorphic rock
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
mineral
Nephrite Jade
Nephrite
Mineral/Rock
Pyrite (Fool's Gold)
Iron Sulfide (FeS2)
mineral
Muscovite Schist
Muscovite (KAl2(AlSi3O10)(OH)2) in Schist
metamorphic
Sodalite in Matrix (Sunset Sodalite)
Sodalite Na8(Al6Si6O24)Cl2
mineral
Carnelian (a variety of Chalcedony)
Silicon Dioxide (SiO2) with Iron Oxide impurities
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Labradorite
Feldspar (Plagioclase Series), (Ca,Na)(Al,Si)4O8
mineral
Rose Quartz
Silicon Dioxide (SiO2) with trace amounts of titanium, iron, or manganese
mineral
Citrine Quartz Crystal Cluster
Silicon Dioxide (SiO2) with iron impurities
mineral
Quartz
Silicon dioxide (SiO₂)
Mineral
Granite
Plutonic Igneous Rock (composed typically of SiO2, Al2O3, K2O, Na2O, CaO)
igneous
Sodalite
Sodalite (Sodium Aluminum Silicate Chloride), Na8(Al6Si6O24)Cl2
Mineral
Black Spinel
Magnesium Aluminum Oxide (MgAl2O4)
mineral
Calcite
Calcium Carbonate (CaCO3)
mineral