Retrograded eclogite  

Note the coronas of plagioclase (white) + hornblende (green) which surround garnet (light tan) in this retrograded eclogite from the North Carolina Blue Ridge. The textures in this rock suggest that garnet was on its way out of this rock during retrograde metamorphism.

UNC sample


(K. Stewart)

Rock type

retrograded eclogite


Blue Ridge, NC