Epidote    Green Monster Mountain, Prince of Wales Island, Alaska.  Ex. Harold L. Dibble collection.  6 x 5.5 x 3.2 cm single crystal that is twinned, as can be noted from the opposing striations that reviel the twin plane.  Great luster and form.  Healed contact on one edge is why you see the lighter green coloration.  Base contact, damage-free.  $150