Minerals
1) Source of money
2) Sending "money" to legions
3) Used in constructing modules/structures (You will understand this better once you have something that needs minerals)
4) Used for some missions
Patrick wrote:
I must not be high enough level to experience this
IT is not related to level. It is related to research. Once you unlock the better modules/structures they need those minerals. Some items may need items from "special tab" though.
Question: Why not I just buy them when I need them?
Answer: Selling off minerals has a 20% tariff. So buying them back will cause a loss of 20%.
Q: So should I stock up on my minerals in my cargo?
A: Better not if possible, it might be raided (stolen)