Orthoclase Feldspar
KAlSi3O8 (Potassium aluminum silicate)
mineral
Category
Metamorphic Or Mineral
Browse metamorphic or mineral specimens identified by the Rock Identifier community.
Moonstone
Orthoclase Feldspar ((K,Na)AlSi3O8)
mineral
Blue Kyanite
Kyanite (Al2SiO5)
mineral
Serpentinite
Serpentinite
metamorphic
Beryl (var. Heliodor or Aquamarine)
Beryllium Aluminum Cyclosilicate (Be3Al2Si6O18)
mineral
Aquamarine
Beryl (Be3Al2Si6O18 with iron impurities)
mineral
Venetian Gold Granite
Phaneritic Felsic Igneous Rock (Granite)
igneous
Blue Kyanite
Kyanite (Al2SiO5)
metamorphic
Smoky Quartz
Silicon Dioxide (SiO2)
mineral
Schorl (Black Tourmaline)
NaFe3Al6(BO3)3Si6O18(OH)4 (Schorl)
mineral
Gneiss (with Quartzite and Biotite)
Gneiss containing SiO2 (Quartz), K(Mg,Fe)3AlSi3O10(OH)2 (Biotite), and (K,Na,Ca)AlSi3O8 (Feldspar)
metamorphic
Green Aventurine
Silicon Dioxide (SiO2) with inclusions of Fuchsite mica
metamorphic
Greenstone / Epidosite
Epidosite (Metasomatic rock consisting mainly of Epidite Ca2(Al2,Fe3+)(SiO4)(Si2O7)O(OH) and Quartz)
metamorphic
Lapis Lazuli
Lapis Lazuli (Complex aggregate mainly of Lazurite: (Na,Ca)8(AlSiO4)6(S,Cl,SO4,OH)2)
metamorphic
Quartzite
Hydrothermal Quartz or Quartzite (SiO2)
metamorphic
Quartz (Milky/Common)
Silicon Dioxide (SiO2)
mineral
Garnet
Almandine (Fe3Al2(SiO4)3)
mineral
Schist (Micaceous Schist)
Schist (containing mainly Muscovite and Quartz)
metamorphic
Rutilated Quartz
Silicon Dioxide (SiO2) with Titanium Dioxide (TiO2) inclusions
mineral
Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
mineral
Quartzite Pebble
Quartzite (primarily SiO2)
metamorphic
Foliated Gneiss (River-Worn Pebble)
Gneiss (High-grade Regional Metamorphic Rock)
metamorphic
Schist
Mica Schist
metamorphic
Smoky Quartz
Silicon Dioxide (SiO2)
mineral
Smoky Quartz
Silicon Dioxide (SiO₂)
mineral
Chalcopyrite in Matrix
Chalcopyrite (CuFeS2)
mineral
Fluorite
Fluorite (CaF₂)
mineral
Lepidolite
K(Li,Al)3(Si,Al)4O10(F,OH)2
Mineral
Jadeite (Jade)
NaAlSi2O6 (Sodium Aluminum Silicate)
metamorphic
Smoky Quartz
Silicon Dioxide (SiO2)
mineral
Sodalite
Sodalite Na8(Al6Si6O24)Cl2
mineral
Sodalite
Sodium Aluminum Silicate Chloride (Na8(Al6Si6O24)Cl2)
mineral
Citrine Quartz
Silicon Dioxide (SiO2) with iron impurities
mineral
Pyrite
Iron Sulfide (FeS2)
mineral
Aquamarine
Beryl (Be3Al2Si6O18)
mineral
Hypersthene
Enstatite (Hypersthene variety), (Mg,Fe)SiO3
mineral
Milky Quartz (Ferruginous variety)
Silicon Dioxide (SiO2)
mineral
Peach Moonstone (Orange/Peach Feldspar)
Potassium aluminum silicate (KAlSi3O8)
mineral
Labradorite (Dark or Black variety)
Labradorite (member of Plagioclase Feldspar group), (Na,Ca)(Si,Al)4O8
mineral
White Quartz (Milky Quartz)
Silicon Dioxide (SiO2)
mineral
Tourmaline (Multi-colored)
Complex Borosilicate (Na,Ca)(Li,Mg,Al,Fe)3Al6(BO3)3Si6O18(OH)4
mineral
Quartz
Silicon Dioxide (SiO2)
mineral