Island with alkaline intrusions with rocks like alnöite, kimberlite, carbonatite, sövite, melteigite, ijolite, urtite, borengite (from the locality Båräng).
Refs.:
- Högbohm, A.G. (1895): Über das Nephelinsyenitgebiet auf der Insel Alnö. Geol. Fören. Stockholm Förh.: 17: 100-160.
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http://www.koeln.netsurf.de/~w.steffens/alno.htm
Compositional variations (major and trace elements) of clinopyroxene and Ti-andradite from pyroxenite, ijolite and nepheline syenite, Alnö Island, Sweden
Hode Vuorinen et al. (2005)
Lithos 81, 55– 77
http://www.nrm.se/download/18.14c432a7111ff6bba4f80003963/Alnoe.pdf
Hode Vuorinen, J. (2005)
The Alnö alkaline and carbonatitic complex, east central Sweden - a petrogenetic study
http://www.diva-portal.org/su/theses/abstract.xsql?dbid=54682 entries listed. 69 valid minerals.
