How is the Quarry working?

There is one or more Quarry on every map. There you will find stones that you can mine with a Pickaxe (Usable). Depending on your skill level, you will receive at least four resources (depending on the type of stone). You can sell gemstones and crystals. You can process metal into ingots, which can also be sold. Stones can be processed into cement (Cement Bag) or mortar (Bucket of Mortar).

Note: The Tempest Device cannot be used for this action.