These are naturally spawning resources at island generation. Mine to get Mined Rock Mined Rock, which are used to construct basic buildings. It has a desert variant: Sand Rock Sand Rock

By assigning a colonist the Job: Harvesting they will equip a Stone Pickaxe Stone Pickaxe if available and respond to Mining Work assigned on the map.

Rocks have a limited amount to each map but can be imported using a Shipping Port

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