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epistilbite

A monoclinic mineral, Ca(Al2Si6O16).5H2O ; zeolite group; dimorphous with goosecreekite; forms radiating spherical aggregates of prismatic crystals in cavities in basalt and andesite, or with beryl in pegmatites.

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  • ed.young
  • (Milwaukee, United States)

  •  (V.I.P) 21084 分数
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