Out of Mine!

Game description from the publisher:

"Out of mine!" At hearing this call through the shafts of the mine, dwarves immediately let their pickaxes rest. Who was able to best complete the challenge? Equipped with pickaxes and the secret knowledge of the mine elves, in Out of Mine! the players try to expose as many precious crystals as possible. Each one gets his own special tunnel, in which he tries to find the crystals according to the hints of the elves. If one dwarf manages to find all of the predicted crystals in his tunnel, the call "Out of mine!" rings out loud. The players now get points for the found resources, but only at the end of the week after the seventh round of exploration will everyone see who has been the most successful dwarf. Only the dwarf who manages to quickly and correctly dig for crystals in his tunnel has a chance to become the master dwarf.