ver·mic·u·lite /(ˌ)vɝˈmɪkjəˌlaɪt/
  蛭石
  Ver·mic·u·lite n.  Min. A group of minerals having, a micaceous structure. They are hydrous silicates, derived generally from the alteration of some kind of mica. So called because the scales, when heated, open out into wormlike forms.
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