Gem Veins

Here you'll get to know everything you need to get some precious free gems. Although you can get some for watching ads and gather them by wrecking ships or from chests, most reliable are gem mines. On the regular map are 8 of 10 Gem Veins usable - only after unlocking the map expansion from level 65 on, you'll be able to find all 10 Gem Veins
 Gem Veins
Unrestored	Restored
 	
Click on the image, to scroll down to that building.
Super Factory
Three gem mines can be found in the north-western hemisphere of the map.
Two gem mines can be found in the north-eastern hemisphere of the map
Three gem mines can be found in the south-western hemisphere of the map
After Level 65 you are able to unlock the map expansion. With that you can restore the last 2 Gem Veins.
All gem related upgrades in order by unlocking them:
Category:Income
Category:Resource