pyr·rho·tite /ˈpɪrəˌtaɪt/
  磁黃鐵礦
  Pyr·rho·tine Pyr·rho·tite n.  Min. A bronze-colored mineral, of metallic luster.  It is a sulphide of iron, and is remarkable for being attracted by the magnet.  Called also magnetic pyrites.
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  pyrrhotite
       n : a brownish iron sulfide mineral FeS having weak magnetic
           properties [syn: pyrrhotine, magnetic pyrites]