Mineralium DepositaOctober 1985, Volume 20, Issue 4, pp 276–276 | Cite asBook reviewAuthorsAuthors and affiliationsW. F. GiggenbachArticle 37 Downloads This is a preview of subscription content, log in to check access.Copyright information© Springer-Verlag 1985Authors and AffiliationsW. F. Giggenbach11.WellingtonNew Zealand