Man-made Slag (Industrial Byproduct)
Anthropogenic Glassy Residue
not a natural rock
Category
Meteorite
Browse meteorite specimens identified by the Rock Identifier community.
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Olivine in Basalt matrix
Peridotite (Mg, Fe)2SiO4
igneous
Martian Meteorite (Black Beauty)
Martian (basaltic breccia) Meteorite, Northwest Africa (NWA) 7034
igneous
Unidentified dark pebble
Undetermined; possibly polished basalt, chert, or iron-rich stone
mineral
Unidentified dark metallic sulfide specimen
Possibly pyrite-, chalcopyrite-, or galena-bearing ore; exact identification requires testing
mineral
Vesicular Basalt with Oxidized Crust
Vesicular Basalt (Iron-rich extrusive volcanic rock)
igneous
Ironstone Concretion
Ironstone (Siderite/Goethite/Hematite matrix)
sedimentary
Slag
industrial by-product
Ironstone Concretion (Limonite/Goethite)
Goethite/Limonite concretion (FeO(OH)·nH2O)
sedimentary
Olivine (Peridotite)
(Mg,Fe)2SiO4 (Magnesium Iron Silicate)
igneous
Sandstone Concretion
Clastic sedimentary rock (primarily Silica, SiO2, or Calcium Carbonate, CaCO3)
sedimentary
Olivine (Peridotite)
Magnesium iron silicate ((Mg, Fe)2SiO4)
igneous
Olivine (Peridot)
Magnesium Iron Silicate (Mg,Fe)2SiO4
mineral
Peridot
Olivine ((Mg, Fe)2SiO4)
gemstone
Olivine (Peridot)
(Mg,Fe)2SiO4
mineral
Peridot (Olivine)
Magnesium Iron Silicate (Mg, Fe)2SiO4
mineral
Peridot (Olivine)
Olivine ((Mg, Fe)2SiO4)
mineral
Peridot (Olivine)
Magnesium Iron Silicate (Mg, Fe)2SiO4
mineral
Peridot
Olivine (Mg, Fe)2SiO4
mineral
Peridot
Olivine ((Mg, Fe)2SiO4)
mineral
Peridot
Olivine (Magnesium Iron Silicate), (Mg, Fe)2SiO4
mineral
Olivine (Peridot)
Magnesium Iron Silicate (Mg, Fe)2SiO4
Mineral
Fossiliferous Concretion
Septarian Concretion containing Brachiopods/Crinoids
fossil
Iron Concretion
Ferruginous concretion (Fe2O3·nH2O / FeO(OH))
sedimentary
Olivine (Peridot)
Magnesium Iron Silicate (Mg,Fe)2SiO4
mineral
Iron Nodule
Iron-manganese concretion (Fe-Mn hydroxide)
sedimentary
Ironstone Concretion
Siderite or Goethite Concretion
sedimentary
Iron Slag
Anthropogenic pyrometallurgical residue
industrial byproduct
Olivine
Magnesium Iron Silicate ((Mg, Fe)₂SiO₄)
mineral
Limonite Concretion
Limonite (Hydrated iron(III) oxide-hydroxides, FeO(OH)·nH2O)
sedimentary
Olivine (Peridot)
Magnesium Iron Silicate ((Mg, Fe)2SiO4)
mineral
Claystone Concretion
Septarian Concretion (Ironstone-rich)
sedimentary
Iron Slag
Anthropogenic Ferro-silicate
mineral
Likely polished basalt with pale mineral inclusions
Basalt; inclusions possibly calcite, quartz, or weathered feldspar
igneous
Iron Slag
Ferrous Slag (Industrial Byproduct)
mineraloid (anthropogenic byproduct)
Iron-Nickel Meteorite (Possible Chondrite or Oxidized Iron)
Siderite (Nickel-Iron) or Chondrite (Si/Fe composite)
igneous
Peridot
Olivine (Mg, Fe)2SiO4
gemstone
Peridot (Olivine)
Magnesium Iron Silicate (Mg,Fe)2SiO4
gemstone
Peridot
Olivine (Magnesium Iron Silicate), (Mg, Fe)2SiO4
mineral
Peridot
Olivine (Magnesium Iron Silicate - (Mg, Fe)2SiO4)
Mineral
Limitation Concretion
Ironstone Concretion (Goethite/Limonite)
sedimentary
Ironstone Concretion (Limonite/Goethite)
Ferruginous Siltstone / Limonite Concretion (FeOO(OH)·nH2O)
sedimentary