I'm getting kind of broke in Animal Crossing: New Leaf, so I've started to look for money rocks. How many money rocks are there in total?
Occasionally you will find a rock filled with ore that works the same as a money rock - each time hit, a piece of ore comes out. That happens instead of a money rock. Had it happen to me today. There was still a rock that broke and had 1 piece of ore inside in the town. Also you can get up to I think 16,000 bells from one money rock if you're quick enough. I'd recommend island fishing and beetle hunting after 4PM though, if you're broke. Sharks galore!