Laboratoire de Gemmologie Marseiille
 
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TOURMALINE
     
N°43A
tourmaline rouge, Ambalamahatsara.
Madagascar 2001, Rapport
Ambalamahatsara 2001, Madagascar
Zoned pegmatite field; primitive dikes close to a synkinematic granite (Granite of the intrusive complex of Ambatofinandrahana) and medium evolved to high evolved pegmatites in schists and marbles. Association of green amazonite together with deep-red tourmaline. Spectacular example of “line rock” with magmatic slumpings and other complex structures.
Field Course on the Rare Element Pegmatites of Madagascar. Technical Program And Field Trip Guidebook.



 
 
     
     
     
     
     
     
     


 

 
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