Owl - coll. P.P. ATHENA

MINERALOGY
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Mineral:GARRONITE
Formula:NaCa2.5[Al6Si10O32] · 14H2O
Crystal System:Quadratic (Tetragonal) / Orthorhombic
Strunz Nr:8/J.25-40
Group:Zeolite Group
References:HB2/1 (1995); EJM 10 (1998), 1037
Type Locality:Glenariff Valley, Garron Plateau, Co. Antrim, Northern Ireland

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