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vivianite

/'viviәnait/

📖 中文释义

  1. n. [矿]蓝铁矿
📘 English Definition（英文释义）
  1. n. A hydrous phosphate of iron of a blue to green color,
  2. growing darker on exposure. It occurs in monoclinic crystals, also
  3. fibrous, massive, and earthy.
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