Apophyllite-(KF), Prehnite

Apophyllite-(KF) : KCa₄[(F,OH)|Si₈O₂₀] · 8H₂O, Prehnite : Ca₂Al₂Si₃O₁₂(OH)

Locality: Avebury Nickel Deposits, Zeehan district, Tasmania, Australia

Pseudo-octahedral fluorapophyllite crystal to about 1mm diam., on prehnite "balls". R. Bottrill specimen and photo.

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Apophyllite-(KF), Prehnite

Apophyllite-(KF) : KCa4[(F,OH)|Si8O20] · 8H2O, Prehnite : Ca2Al2Si3O12(OH)

Apophyllite-(KF) : KCa₄[(F,OH)|Si₈O₂₀] · 8H₂O, Prehnite : Ca₂Al₂Si₃O₁₂(OH)