Submarine Volcano (CTP2)

Submarine Volcano is a type of terrain in Call to Power II. Rubies and Diamonds can be found here.
==Gameplay==
Submarine Volcanoes are the greatest source of on the planet. Mining is expensive and time consuming to build but can reap substantial benefits. There is an abundance of , but no .
One can build and , but not or .
 and , though rare, are Goods found on Submarine Volcanoes.