Latitude: 77°31'47"S
Longitude: 167°10'12"E
This type of volcanism, of phonolitic composition, is indeed unique for Erebus and the East African Rift Zone (Kilimanjaro).
References
Rosenberg, P.E. (1988), Aluminum fluoride hydrates, volcanogenic salts from Mount Erebus, Antarctica. American Mineralogist: 73: 855-860.
External Links
http://tea.rice.edu/jroberts/12.13.1999.html [Link dead. Nov 2011] (photos)
Mineral List
13 entries listed. 9 valid minerals.
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