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A clay mineral from Stjernøy, North Norway
Published online by Cambridge University Press: 14 March 2018
Abstract
A thin vein of a white powdery material situated in massive syenite was examined by various methods and found to consist of an association of a zeolite with calcium montmorillonite, which seems to have been formed by the slow but prolonged action of water on nepheline.
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- Copyright © The Mineralogical Society of Great Britain and Ireland 1962