Apophyllite-(KF), Prehnite, Quartz

Apophyllite-(KF) : KCa₄[(F,OH)|Si₈O₂₀] · 8H₂O, Prehnite : Ca₂Al₂Si₃O₁₂(OH), Quartz : SiO₂

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Locality: Nasik quarry, Nasik District, Maharashtra, India

Sparkling specimen of lustrous, colorless fluorapophyllite crystals up to 25 mm and translucent, yellow, spherical prehnite crystals up to 9 mm diameter on matrix coated with small 1-2 mm quartz crystals. Very clean, no damage. Overall size of mineral specimen: 10x8x4 cm. Size of individual crystals: 1-25 mm.

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Apophyllite-(KF), Prehnite, Quartz

Apophyllite-(KF) : KCa4[(F,OH)|Si8O20] · 8H2O, Prehnite : Ca2Al2Si3O12(OH), Quartz : SiO2

Apophyllite-(KF) : KCa₄[(F,OH)|Si₈O₂₀] · 8H₂O, Prehnite : Ca₂Al₂Si₃O₁₂(OH), Quartz : SiO₂