Iron Slag
Iron/Steel Slag (Ferrosilicate Glass)
Category
Browse mineral like byproduct (often mistaken for igneous rock or meteorite) specimens identified by the Rock Identifier community.
Iron Slag
Iron/Steel Slag (Ferrosilicate Glass)
Ferrocoke or Slag
Anthropogenic pyrometallurgical residue
Ferro-silicate Slag
Industrial Vitrified Slag (High-silica amorphous glass)
Sandstone (with Iron Siderite Concretion)
Arenite with Ironstone Concretion (FeCO3)
Iron Slag
Vitreous glassy waste (Fe-Si-Al-Ca compounds)
Ferruginous Slag (Iron Smelting Byproduct)
Anthropogenic Vitreous Silicate (often containing Fayalite: Fe2SiO4)
Iron Slag
Anthropogenic pyrometallurgical residue
Iron Slag
Ferrous Slag (complex silicate and oxide byproduct)
Basalt with Fusion Crust (Meteorite-like appearance)
Vesicular Basalt
Ironstone Concretion (Limonite/Goethite)
Iron-rich sedimentary rock (FeOx)
Limonite Concretion
Limonite (Hydrated iron(III) oxide-hydroxides, FeO(OH)·nH2O)
Sandstone (Ferruginous Concretion)
Ferruginous Sandstone Concretion / SiO2 with Fe2O3 cement
Slag Glass / Industrial Slag
Anthropogenic Glass
Vesicular Basalt with Oxidized Crust
Vesicular Basalt (Iron-rich extrusive volcanic rock)
Concretion
Sedimentary Concretion (e.g., Siderite or Ironstone)
Ironstone Concretion (Limonite/Goethite)
Goethite/Limonite concretion (FeO(OH)·nH2O)
Blue Slag Glass
Man-made Silicon Dioxide (Amorphous)
Sandstone Concretion
Clastic Sedimentary Concretion (primarily SiO2 with Fe2O3 cement)
Sandstone Concretion
Septarian Concretion (Nodule)
Ironstone Nodules (Limonite/Hematite)
Goethite/Hematite mix (FeO(OH)/Fe2O3)
Blue Slag Glass
Ferro-silicate glass (Slag)
Ironstone Nodules (Iron Concretion)
Siderite or Hematite Concretion
Iron Concretion
Ferruginous concretion (Fe2O3·nH2O / FeO(OH))
Limonite Concretion
Limonite (Hydrated Iron Oxide) FeO(OH)·nH2O
Goethite Concretion
Goethite (FeO(OH))
Ironstone Concretion
Ferruginous Concretion (Fe2O3·nH2O)
Sandstone (with Concretion)
Arenite / Quartzose Sandstone
Ironstone Concretion
Ironstone (Siderite/Limonite/Goethite)
Ironstone Concretion
Siderite or Limonite Concretion
Limitation Concretion
Ironstone Concretion (Goethite/Limonite)
Sandstone Concretion
Ferruginous Sandstone Concretion (SiO2 + FeO(OH))
Ferrochrome Slag
Industrial Glassy Slag (Fe-Cr alloy byproduct)
Ferruginous Sandstone (Ironstone)
Sedimentary rock with high iron oxide content (Fe2O3 / FeO(OH))
Vesicular Basalt
Extrusive Mafic Igneous Rock (Vesicular Basalt)
Ferruginous Siltstone or Mudstone
Ferruginous Siltstone / Goethitic Sandstone
Copper slag or vesicular basalt with copper minerals
Industrial slag / Basaltic matrix with secondary copper minerals
Ironstone concretion
Siderite or Limonite-rich Concretion (FeO(OH)·nH2O)
Sandstone Concretion
Clastic sedimentary rock (primarily Silica, SiO2, or Calcium Carbonate, CaCO3)
Sandstone Concretion
Ferruginous Sandstone Concretion
Ironstone Concretion (Boxwork)
Siderite-Limonite Concretion (FeO(OH)·nH2O)
Ironstone Concretion
Siderite or Goethite Concretion
Sandstone concretion
Arenite sedimentary rock (concretion/nodule)