Blue Apatite
Apatite - Ca5(PO4)3(F,Cl,OH)
Category
Browse mineral in metamorphic rock specimens identified by the Rock Identifier community.
Blue Apatite
Apatite - Ca5(PO4)3(F,Cl,OH)
Quartz (Milky Quartz/Citrine Type)
Silicon Dioxide (SiO2)
Biotite Mica
Biotite (K(Mg,Fe)3AlSi3O10(F,OH)2)
Lapis Lazuli
Lazurite-rich metamorphic rock (approx. Na6Ca2(Al6Si6O24)(S,SO4,Cl)1,2)
Gneiss
Gneiss (High-grade Metamorphic Rock)
Garnet-Bearing Schist
Almandine Garnet Micaceous Schist
Lapis Lazuli
Lapis Lazuli (Complex silicate rock containing Lazurite (Na,Ca)8(AlSiO4)6(S,Cl,SO4,OH)2, Calcite, and Pyrite)
Slate
Slate (Foliated metamorphic rock)
Slate
Foliated low-grade metamorphic rock
Mica Schist
Mica Schist (predominantly Muscovite or Biotite sheet silicates)
Limonite-stained Quartz
Silicon Dioxide (SiO2) with Iron Oxide/Hydroxide (FeO(OH)·nH2O) staining
Quartz Vein in Host Rock
Silicon Dioxide (SiO2)
Schist (Biotite Schist)
Biotite-bearing Schist (K(Mg,Fe)3AlSi3O10(F,OH)2)
Tiger's Eye (with Blue Tiger's Eye / Hawk's Eye)
Pseudomorph of Quartz after Crocidolite (SiO2 with inclusions)
Quartz
Silicon Dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Quartzite River Rock
Quartzite (primarily SiO2)
Banded Gneiss
Gneiss (High-grade regional metamorphic rock)
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Orthoclase Feldspar
KAlSi3O8 (Potassium Aluminum Silicate)
Mica Schist
Mica Schist (Main mineral constituents: Muscovite/Biotite, Quartz, Feldspar)
Tiger's Eye (Mineral Collection)
Tiger's Eye (SiO2 with crocidolite inclusions)
Gneiss
Gneiss (High-grade metamorphic rock)
Lapis Lazuli (polished cabochon)
Lazurite-rich metamorphic rock (approx. Na6Ca2Al6Si6O24(SO4,S,Cl)2)
Garnet
Almandine (Fe3Al2(SiO4)3)
Unakite
Epidotized Granite
Quartz
Silicon dioxide (SiO2)
Orthoclase Feldspar with Quartz
Orthoclase (KAlSi3O8)
Biotite Mica
Biotite (K(Mg,Fe)3AlSi3O10(OH,F)2)
Marble
Metamorphic rock composed of Recrystallized Carbonate Minerals (chiefly CaCO3)
Almandine Garnet in Schist
Almandine Garnet (Fe3Al2(SiO4)3) in Mica Schist
Gneiss
Gneiss
Sandstone (Micaceous Sandstone)
Arenite (SiO2 with KAl2(AlSi3O10)(OH)2 inclusions)
Nuummite
Nuummite (Orthorhombic amphiboles: Anthophyllite and Gedrite)
Mica Schist
Mica Schist
Quartz with Iron Staining
Silicon Dioxide (SiO2) with Limonite/Hematite inclusions
Unidentifiable Specimen
Undetermined
Epidote
Epidote Group (e.g., Clinozoisite, Epidote, Piemontite), Epidote formula: Ca2(Al,Fe)3(SiO4)3(OH)
Serpentinite
Serpentinite (Mg, Fe, Ni, Al, Zn, Mn)2-3(Si, Al, Fe)2O5(OH)4
Gneiss
Gneiss (High-grade Metamorphic Rock)
Milky Quartz
Silicon Dioxide (SiO2)
Mica Schist
Mica Schist (predominantly Muscovite or Biotite sheet silicates)