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offretite

A hexagonal mineral, (K2,Ca)5Al10Si26O72.30H2O ; zeolite group; commonly intergrown with erionite and levyne as a vein or cavity filling in mafic lavas.

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Penulis

  • ed.young
  • (Milwaukee, United States)

  •  (V.I.P) 21084 poin
  • 100% positive feedback
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