Natroalunite and alunite from White Island volcano, Bay of Plenty, New Zealand
- 1 March 1975
- journal article
- research article
- Published by Informa UK Limited in New Zealand Journal of Geology and Geophysics
- Vol. 18 (2), 285-293
- https://doi.org/10.1080/00288306.1975.10418200
Abstract
Alunite minerals were found on White Island volcano, Bay of Plenty, New Zealand. Most samples contain natroalunite with a subordinate amount of alunite; sodian alunite was identified in two samples. The minerals occur in microscopic and submicroscopic euhedral crystals. Chemical, X-ray, and DTA data are given. The minerals probably formed by alunitisation of volcanic rocks, rather than by direct precipitation from hot waters.Keywords
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