Both Oasis Springs and Willow Creek have several dig spots (I assume this is what you mean with "rocks") just look around and you will find them.
Notice that you can buy Crystals on the computer except for the rare ones.
We have not been able to find anything to dig at all. Maybe one actual rock or "dig spot" as you called it (we call them dirt mounds/holes) and than nothing else.
@4_20st0_n3r If they all spawn as the dirt dig spots, even though those don’t give anything useful you need to dig them up anyway and hope when they respawn you have better luck and they’ll be rocks. Are you seeing any of the dirt ones?
I generally call things what they are known as in the game. That makes it easier to make sure we are talking about the same thing. Notice that dig spots are generally located on the outskirts of the neighborhood so look there. They alternate between two looks dirt or rocky. every day if they have been dug. Notice that not all neighborhoods have the same amount of dig spots so you may want to visit other places.
@4_20st0_n3r Just so you have a sense of what these look like and how big they are, check the Crystal Creations reveal trailer at 0:14.
