The origin of Al-rich spinel inclusions in leucite from the leucite lamproites of Western Australia

A. L. Jaques, S. F. Foley

Research output: Contribution to journalArticlepeer-review

14 Citations (Scopus)

Abstract

Aluminous spinels (pleonaste-hercynite) occur as tiny (mostly <20 mu m) inclusions in leucite phenocrysts (and pseudomorphs) in leucite lamproites from the West Kimberley region, Western Australia. Their formation in these peralkaline volcanics is attributed to exsolution under conditions of supersaturation from non-stoichiometric leucites originally incorporating Mg, Al and Fe2+ in solid solution. -J.A.Z.

Original languageEnglish
Pages (from-to)1143-1150
Number of pages8
JournalAmerican Mineralogist
Volume70
Issue number11-12
Publication statusPublished - 1985
Externally publishedYes

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