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(Na,K)AlSi3O8
Triclinic
Anorthoclase, a sodium potassium aluminum silicate mineral of the feldspar group, was first reported from Franklin by Palache (1935), who gave an analysis, said by Frondel et al. (1966) to be of impure material and thus not repeated here. Frondel (1972) noted that anorthoclase occurs as brownish granular masses in the calcium silicate units of the orebody and is less common than hyalophane. It has not been reported from Sterling Hill and has not been studied by the writer.
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| Copyright © 1995 by Pete J. Dunn |
Website
by Herb Yeates
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Link
to homepage
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This
page created: January 11, 2001 |
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