A large combo specimen from the legendary 79 Mine - not sure if this is old material or a specimen from the trickle of new stuff from the past few years from re-mining efforts there. What you have is a layer of hemimorphite with a delicate pale blue color from zinc content (which gives Kelly Mine smithsonite a similar hue), and on top of this, little puffballs of blue-green aurichalcite. A little wulfenite crystal can be seen in the close-up!