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          Name:  | 
      
          bixbyite  | 
      
          
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          Class:  | 
      
          Oxide/Hydroxides  | 
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          Chemistry:  | 
      
          (Mn,Fe)2O3 manganous iron oxide  |  
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          Color(s):  | 
      
          black with bronze colored glint  | 
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          Hardness:  | 
      
          6 - 6.5  | 
      
          SpecGrav:  | 
      
          4.9 - 5.0  | 
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          Fracture:  | 
      
          uneven  | 
      
          Cleavage:  | 
      
          incomplete  | 
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          Crystal:  | 
      
          Cubic (usually cubes, sometimes with penetration twins) crystals have a brilliant metallic luster  | 
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          Envronment:  | 
      
          forms in siliceous volcanic rocks  | 
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          Association:  | 
      
          topaz, hematite, garnet, red beryl  | 
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          Locals:  | 
      
          | Utah, Arizona, USA | Mexico| Argentina | India | India | South Africa |  | 
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          Misc:  | 
      
          Name comes from the mineral collector, Maynard Bixby, and it was first found in the Thomas and Wah Wah Mtns. of Utah.  | 
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          Photos   | 
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          1.) Thomas Range, Juab Co., Utah     | 
      
          4.) Thomas Range, Juab Co., Utah     | 
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