Product Description

Rock Type:  Retrograde Amphibolite

Location:  Baffinland, Nunavut

Description:  Plagioclase grains replaced by phengitic-paragonitic white mica and epidote (central bright birefringent colours).  Red-brown-pink amphiboles have tschermakite cores and actinolite rinds with further retrogression to epidote.  The rock was studied for its iron formation potential.