Alkaline Rocks and Carbonatites of the World

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Jabal Fezzan

stripes

Occurrence number: 
097-00-002
Country: 
Libya
Location: 
Longitude: 13.67, Latitude: 28.33

Several dykes and sills of phonolite cut granites and metamorphic rocks in this area. Two main textural varieties are present both of which contain alkali feldspar, nepheline, aegirine and zeolite with eudialyte present in one variety. Two chemical analyses are available.

References: 
BORDET, P., FREULON, J.M. and LEFRANC, J.P.1955. Phonolite à eudialyte du Jebel Fezzan. Bulletin Société Française de Minéralogie et de Crystallographie, 78 (7-9): 425-31.
Location: 
Scratchpads developed and conceived by (alphabetical): Ed Baker, Katherine Bouton Alice Heaton Dimitris Koureas, Laurence Livermore, Dave Roberts, Simon Rycroft, Ben Scott, Vince Smith