Mountainous
From Starport: Galactic Empires
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Mountainous Planet
Mountainous planets have slightly negative population growth. Mountainous worlds only harvest metal ore, uranium, and anaerobes. Mountainous planets harvest metal ore and uranium faster than any other planet type. The Atom smasher building lets you transform two tons of any resource plus one ton of uranium into two tons of any other resource. So you can convert 2 tons of metal ore and 1 ton of uranium into 2 tons of spice. Mountain worlds have an above average pollution rate so keep a watchful eye on it.

