geogems

Find gems in your area by using a treasure map and simply walk to that location — yes, using your real body. If you're lazy or stuck on a bus you can also dig at your current location, but it is less likely that you will find a gem which you otherwise are guaranteed of when you walk to a gem location. Gather more gems and create your own collection and find new places around you while you're at it. The value of the gems are showing, so over time, you accumulate a larger capital. There exists 20+ kinds of gems with different rarities and prices. Touch on a gem to read about it on Wikipedia and long touch to toss it.