Owl - coll. P.P. ATHENA

MINERALOGY
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Mineral:BARRERITE
Formula:Na2[Al2Si7O18] · 6H2O
Crystal System:Orthorhombic
Strunz Nr:8/J.23-40
Group:Zeolite Group
References:MM 40 (1975), 208; HB2/1 (1995); EJM 10 (1998), 1037
Type Locality:Capo Pula, Cagliari, Sardegna, Italy

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