Sunstone
Heliolite (Oligoclase or Orthoclase Feldspar), (Ca,Na)(Al,Si)4O8
Category
Browse mineral (processed metal) specimens identified by the Rock Identifier community.
Sunstone
Heliolite (Oligoclase or Orthoclase Feldspar), (Ca,Na)(Al,Si)4O8
Green Fluorite
Fluorite (Calcium Fluoride, CaF2)
Schist
Mica Schist
Not a rock, mineral, or geological specimen
Pyrite
Iron Disulfide (FeS2)
Pyrite in Limestone
Iron Sulfide (FeS2) in Calcium Carbonate (CaCO3)
Peacock Ore (Bornite or Iridescent Chalcopyrite)
Bornite (Cu5FeS4) or Chalcopyrite (CuFeS2) with tarnish
Pyrite (Fool's Gold)
Iron Sulfide (FeS2)
Labradorite (Feldspar)
Labradorite, (Ca,Na)(Al,Si)4O8
Pyrite
Iron Sulfide (FeS2)
Green Aventurine
Aventurine Quartz (SiO2 with Fuchsite inclusions)
Pyrite in Matrix (Quartz/Schist)
Iron Sulfide (FeS2)
Sunstone
Oligoclase (Feldspar variety), (Na,Ca)(Si,Al)4O8
Peacock Ore (Chalcopyrite/Bornite)
Bornite (Cu5FeS4) or iridescent treated Chalcopyrite (CuFeS2)
Biotite Mica
Biotite (K(Mg,Fe)3AlSi3O10(OH,F)2)
Sodalite
Sodium Aluminum Silicate Chloride (Na8(Al6Si6O24)Cl2)
Green Aventurine
SiO2 (Silicon Dioxide with inclusions of Fuchsite mica)
Galena
Lead Sulfide (PbS)
Pyrite (Iron Pyrite) with Goethite Oxidation
Iron Sulfide (FeS2)
Arsenopyrite in Quartz Matrix
Arsenopyrite (FeAsS) with Quartz (SiO2)
Pyrite
Iron Disulfide (FeS2)
Pyrite
Iron Sulfide (FeS2)
Sunstone with Black Tourmaline (Arfvedsonite)
Feldspar (Na,Ca)(Al,Si)4O8 with Schorl Na(Fe3+)3Al6(Si6O18)(BO3)3(OH)3(OH)
Yellow Aventurine
Silicon Dioxide with inclusions (SiO2 + Muscovite/Fuchsite)
Galena
Lead Sulfide (PbS)
Pyrite
Iron Sulfide (FeS2)
Arsenopyrite with Quartz
Arsenopyrite (FeAsS)
Chalcopyrite
Copper Iron Sulfide (CuFeS2)
Sunstone
Plagioclase Feldspar (Na, Ca)(Al, Si)4O8 with Hematite or Copper inclusions
Limonite Pseudomorph after Pyrite
Limonite (Hydrous iron oxides, FeO(OH)·nH2O) replacing Pyrite (FeS2)
Ironstone (likely Limonite or Goethite)
Ferruginous sedimentary rock (FeO(OH)·nH2O)
Lepidolite
Lepidolite (K(Li,Al)3(Al,Si,Rb)4O10(F,OH)2)
Milky Quartz
Crystalline Silicon Dioxide (SiO2)
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Agate
Banded Chalcedony (SiO2)
Tiger Iron / Banded Iron Formation
Banded Iron Formation (SiO2 with Fe2O3 and FeOOH)
Graphite
Graphite (Native Carbon, C)
Basalt with Vesicular Surface
Basalt (Mafic Extrusive)
Basalt with Iron Oxidation
Mafic Igneous Basalt
Moqui Marble (Concretion)
Iron Oxide Concretion (Hematite/Goethite)
Mahogany Obsidian
Volcanic Glass with Hematite/Magnetite inclusions (SiO2 + Fe2O3)
Magnetite / Iron Ore
Magnetite (Fe3O4)