What mineral-metal is this?

• Fire Star

  12 May 07, 14:59

  I dare not strike it as I do not want to spoil it. When I burn it it turned a bit copper. Anyway Pyrite has cubic structure:
  
  
  
  
• Xtrider

  12 May 07, 15:03

  Tiberium
• sand king

  12 May 07, 15:03

  meteor?