Waste Rock

is a byproduct in Surviving Mars. It's a waste until the Waste Rock Liquefaction technology is researched.

Description
Digging through resources on Martian soil isn't too hard. But it leads to a lot of waste lying around. Waste rock is a reminder that the efficiency of our extractors isn't perfect. It's not useful for anything early game. You will have to store it in dumps until you unlock the tech needed to use it.

Surviving Mars
In Surviving Mars, Waste Rock is generated by extractors, such as the Water Extractor, and the Concrete Extractor. It can be stored in a Dumping Site to stop the excessive tile blocking of Waste Rock mounds. Its only use until the Waste rock liquefaction technology is researched, to turn it into concrete, is landscaping.