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MINERALOGY

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Mineral:HEULANDITE-Ba
Formula:(Ba,Ca,Sr,K,Na)5Al9Si27O72 · 22H2O
Crystal System:Monoclinic
Strunz Nr:8/J.23-14
Group:Zeolite group Heulandite series
References:EJM 17 (2005), 143; AM 90 (2005), 1945
Type Locality:Northern Ravnås (Ravnas) prospect, southern Vinoren, Kongsberg ore district, Flesberg community, Buskerud county, Norway
Comments:Heulandite series

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