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vinogradovite

A monoclinic mineral, (Na,Ca,K)4Ti4AlSi6O23(OH).2H2O ; white to colorless; forms crystals and spherical aggregates in nepheline syenite in the Kola Peninsula, Russia.

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Looja

  • ed.young
  • (Milwaukee, United States)

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