Hi all,
It seems that ilmenite in contact with plagioclase nearby pyroxene is a
good place for amphibole nucleation. I see it in some amphibolites I
studied here in Brasil.
This is a similar process with that one proposed by Carmichael (1969) to
explain kyanie-sillimanite polymorphic transformation involving more
minerals, isn't it ?
Best
Renato
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