Any of a group of widely occurring yellowish-brown to black iron oxide minerals, essentially FeO(OH) nH2O, used as a minor ore of iron.

 
  • 褐铁矿大量出现的黄褐色至黑色的氯化铁矿群中的一种,主要成分为FeO(OH)罚?魈?蟛乜?
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