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Mordenite Heulandite-Ca Image

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 Mordenite, Heulandite-Ca

Large Mordenite Image

Mineral: Mordenite: (Ca,Na2,K2)Al2Si10O24·7(H2O)  
Heulandite-Ca: (Ca,Na)2-3Al3(Al,Si)2Si13O36·12(H2O)
Comments: White, acicular crystals of mordenite in heulandite geode.
Location: Rock Creek, Stevenson, Skamania County, Washington, USA.
Scale: Not Given.
Copyright: © Lou Perloff / Photo Atlas of Minerals
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