Instead of using a confusing and complex system that has no real impact on the game add something much more acute and gratifying.
In the arcade when you step on the elevator have the a system that allows you to "buy" bonuses for that set of levels. Maybe you know that its going to be shock levels so if you turn in 10 blue 10 yellow minerals you have 10% shock resist for the levels. Or maybe make it that you can manipulate the level and instead of a shock level its a poison level or it "rolls" a new type. Something much more accessible and meaningful on an individual or group level.
Before I begin for this thread I must make one thing clear: stop constantly making new threads for small things. Having one concept in a thread is for big things such as new bosses or enemies which require substantial information. Your threads thus far have been to increase an existing drop rate of items in the Clockworks for using the Arcade over missions and a warning noise for when your health is low. These are small and should all be in the same thread to conserve space on the front page while keeping your suggestions in a more easily accessible base.
There are several implicit rules when it comes to rebalancing existing content, one of them being to stay away from "pay to win" and "veterans only". It has been agreed that the crystals/minerals obtained in the Clockworks may not exceed their current cash in rates (1-5 crowns per single mineral varying by scarcity or excess) or provide a benefit over other players. Wait, that was the rule I was referring to: "only your equipment gives you stats*". No, no to buying buffs unless they are part of your equipment such as UVs or natural stats (i.e. Wolver has pierce and freeze defense). Also, ten blue and ten yellow is easy to get; +10% shock resist is too great a payoff for only twenty minerals. There are many players with thousands of minerals accumulated.
* Vitapods are technically not a part of your equipment but add more maximum health while in the Clockworks.
Also, this concept has been addressed and shot down already; multiple times if I remember correctly.