A perfect thumbnail of a complete undamaged pseudomorph from the famed Green Monster Mountain (Alaska). This is the sharpest example of this replacement I have seen from this locality, though there are very few pieces to compare out there. This is a 360 degree specimen with textbook form and clean edges. One small spot shows a little remaining Pyrite which is surprisingly very lustrous. This is a classic locality for Epidote though the related minerals are much less well-known. Ex. A. Edwards collection, a fine small thumbnail.