Biotite (Mica)
Biotite - K(Mg,Fe)3AlSi3O10(F,OH)2
Category
Browse metamorphic (pseudo igneous) specimens identified by the Rock Identifier community.
Biotite (Mica)
Biotite - K(Mg,Fe)3AlSi3O10(F,OH)2
Orthoclase Feldspar
Potassium Aluminum Silicate (KAlSi3O8)
Ruby Zoisite
Anyolite (Composition of Green Zoisite, Black Tschermakite, and Red Corundum)
Muscovite Mica
Muscovite - KAl2(AlSi3O10)(OH)2
Rhodonite
Rhodonite (MnSiO3)
Quartz (Pale Rose or Milky Variety)
Silicon Dioxide (SiO2)
Sodalite
Na8(Al6Si6O24)Cl2
Milky Quartz
Silicon Dioxide (SiO2)
Quartz (Milky/Common)
Silicon Dioxide (SiO2)
Labradorite
Labradorite (a calcium-enriched feldspar mineral), (Ca, Na)(Al, Si)4O8
Magnetite (Lodestone variety)
Magnetite (Fe3O4)
Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
Quartz (Milky Variant)
Silicon Dioxide (SiO2)
Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
Schorl (Black Tourmaline)
NaFe3Al6(BO3)3Si6O18(OH)4 (Sodium Iron Aluminum Borosilicate)
Smoky Quartz
Silicon Dioxide (SiO2)
Bornite (Peacock Ore)
Bornite (Cu5FeS4)
Milky Quartz
Silicon Dioxide (SiO2)
Biotite Mica
Biotite (K(Mg,Fe)3AlSi3O10(OH,F)2)
Morganite (Pink Beryl)
Beryllium aluminum silicate Be3Al2(SiO3)6
Orthoclase Feldspar
KAlSi3O8 (Potassium Aluminum Silicate)
Quartz
Silicon Dioxide (SiO2)
Pyrite (Fool's Gold)
Iron Sulfide (FeS2)
Sodalite
Sodalite [Na8(Al6Si6O24)Cl2]
Cloud Quartz (Milky Quartz)
Silicon Dioxide (SiO2)
Cloudy Quartz
Quartz (Silicon Dioxide, SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Quartz Vein (Iron-stained)
Silicon Dioxide (SiO2) with limonite/hematite staining
Rose Quartz
Silicon Dioxide with trace inclusions of dumortierite or titanium (SiO2)
Mica (Muscovite)
Muscovite (KAl2(AlSi3O10)(OH)2)
Granite (with Almandine Garnet inclusions)
Granite composed primarily of Quartz (SiO2), K-Feldspar (KAlSi3O8), and Almandine Garnet (Fe3Al2(SiO4)3)
Garnet
Garnet Group (complex nesosilicates with general formula X3Y2(SiO4)3, where X can be Ca, Mg, Fe2+, Mn2+ and Y can be Al, Fe3+, Cr3+, V3+)
Quartz (likely milky/rose quartz variety)
Quartz (SiO2 - Silicon Dioxide)
Unakite
Epidotized Granite
Chlorite (Small Flakes/Sand)
Chlorite Group (Magnesium Iron Aluminum Silicate Hydroxide - (Mg,Fe)3(Si,Al)4O10(OH)2·(Mg,Fe)3(OH)6)
Ruby
Corundum (Al2O3 with Chromium traces)
Ruby (Corundum)
Corundum (Aluminum Oxide) with chromium trace elements, Al2O3
Moonstone
Orthoclase Feldspar (containing Albite lamellae), (KAlSi3O8)
Milky Quartz with Iron Staining
Silicon Dioxide (SiO2)
Quartz (Smoky Quartz variant)
Silicon Dioxide (SiO2)
Milky Quartz (Common Quartz)
Quartz (Silicon Dioxide, SiO2)
Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)