#ore  a metal-bearing mineral valuable enough to be mined
  supertype:  mineral  solid homogeneous inorganic substances occurring in nature having a definite chemical composition
  subtype:  dressed_ore__concentrate  the desired mineral that is left after impurities have been removed from mined ore
  subtype:  iron_ore  an ore from which iron can be extracted
     subtype:  goethite__gothite  a red or yellow or brown mineral; an oxide of iron that is a common constituent of rust
     subtype:  chamosite  a greenish gray or black silicate of iron and aluminum
     subtype:  taconite  a variety of chert containing magnetite and hematite; mined as a low-grade iron ore
     subtype:  hematite__haematite  the principal form of iron ore; consists of ferric oxide in crystalline form; occurs in a red earthy form
     subtype:  lepidocrocite  a red to reddish brown mineral consisting of iron oxide hydroxide (FeO(HO)); often found in iron ores together with goethite
     subtype:  limonite  a widely occurring iron oxide ore; a mixture of goethite and hematite and lepidocrocite
     subtype:  magnetite__magnetic_iron-ore  an oxide of iron that is strongly attracted by magnets
        subtype:  lodestone__loadstone  magnetite that possess polarity and has the power to attract as well as to be attracted magnetically
     subtype:  chalybite__siderite  iron ore in the form of ferrous carbonate
  subtype:  lead_ore  ore containing lead
  subtype:  pay_dirt.ore__paydirt  ore that yields a substantial profit to the miner
  subtype:  uranium_ore__uraniumore  any ore from which uranium can be extracted
     subtype:  carnotite  a yellow radioactive mineral; an ore of uranium and radium and vanadium
     subtype:  uraninite  a mineral consisting of uranium oxide and trace amounts of radium and thorium and polonium and lead and helium; uraninite in massive form is called pitchblende which is the chief uranium ore

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