The Identity of Almeriïte with Natroalunite

A. Hoyos de Castro and L. J. Alías
University of Madrid, Spain
Zaidin Exp. Station, C.S.I.C. Granada, Spain

Summary: Two specimens of almeriïte from the type locality have been examined by chemical analysis, d.t.a., and X-ray powder photography and shown to be identical with natroalunite. A little illite and kaolinite are present as impurities. X-ray powder data for natroalunite are presented.

Mineralogical Magazine; March 1963 v. 33; no. 260; p. 353-357; DOI: 10.1180/minmag.1963.033.260.01
© 1963, The Mineralogical Society
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