Magnetite (Lodestone variant potential)
Magnetite (Fe3O4)
Category
Browse mineral (metamorphic pseudomorph) specimens identified by the Rock Identifier community.
Magnetite (Lodestone variant potential)
Magnetite (Fe3O4)
Pyrite
Iron Sulfide (FeS2)
Blue Quartz (Blue Aventurine)
Silicon Dioxide with inclusions (SiO2)
Biotite (Black Mica)
Biotite - K(Mg,Fe)3(AlSi3O10)(F,OH)2
Tumbled Moonstone
Feldspar (Orthoclase/Albite), KAlSi3O8
Chalcopyrite
Copper Iron Sulfide (CuFeS2)
Magnetic Sand Grain / Magnetite Pellet
Magnetite (Fe3O4)
Muscovite Mica
KAl2(AlSi3O10)(OH)2
Epidote and Quartz in Basalt
Epidote [Ca2(Al2,Fe3+)(SiO4)(Si2O7)O(OH)] in Metabasalt
Mica-rich Schist fragment
Mica Schist
Schist (Greenschist / Mica Schist)
Metamorphic rock rich in platy minerals (e.g., Chlorite/Mica schist)
River Stone (possibly Gneiss)
Metamorphic Gneiss
Blue Kyanite
Kyanite (Al2SiO5)
Polished Hematite Tower
Hematite (Fe2O3)
Milky Quartz with Iron Staining
Silicon Dioxide (SiO2) with Limonite/Goethite
Zoisite with Ruby (Anyolite)
Zoisite – Ca2Al3(SiO4)3(OH) with inclusions of Ruby (Al2O3:Cr)
Greenstone / Greenschist
Chlorite schist / Epidiorite
Milky Quartz
Silicon Dioxide (SiO2)
Epidote
Epidote (Ca2(Al, Fe)3(SiO4)3(OH))
Gneiss
Gneiss
Muscovite Mica
Muscovite (Potassium Aluminum Silicate) - KAl2(AlSi3O10)(F,OH)2
Blue Aventurine
Quartz (SiO2) with inclusions
Prehnite
Prehnite (Ca2Al(AlSi3O10)(OH)2)
Kyanite
Kyanite (Al2SiO5)
Magnetite
Fe3O4 (Iron(II,III) oxide)
Lazulite Quartzite
Quartzite with Lazulite (SiO2 with (Mg,Fe)Al2(PO4)2(OH)2)
Granitic Gneiss
Gneiss (high-grade metamorphic rock)
Epidote
Epidote (Ca2(Al, Fe)3(SiO4)3(OH))
Apatite
Fluorapatite (Ca5(PO4)3F)
Schist
Mica Schist
Peacock Ore (Bornite or Iridescent Chalcopyrite)
Bornite (Cu5FeS4) or Acid-treated Chalcopyrite (CuFeS2)
Garnet
Garnet group: X3Y2(SiO4)3 (commonly Almandine-Pyrope series)
Rhodonite
Manganese Silicate (Mn,Fe,Mg,Ca)SiO3
Dumortierite Quartz
Al7BO3(SiO4)3O3 (Aluminum borate silicate)
Gneiss
Metamorphic Gneiss
Marble
Recrystallized Calcite (CaCO3)
Blue Apatite
Apatite, Ca5(PO4)3(F,Cl,OH)
Rhodonite
Rhodonite (Mn,Fe,Mg,Ca)SiO3
Rhodonite
Rhodonite (Manganese Silicate), chemical formula: (Mn,Fe,Mg,Ca)SiO3
Rhodonite
Manganese Silicate (Mn,Fe,Mg,Ca)SiO3
Green Aventurine
SiO2 (Silicon Dioxide with Fuchsite inclusions)
Magnetite-rich Iron Ore
Magnetite (Fe3O4)