making money from mining

[Aelipse]

Reviving an old thread. I do find it quite intriguing to make funds by mining for various resources on other celestial bodies and bringing them home - that is outside of contracts. Being able to mine pretty much everything, or at least everything important, on Kerbin - and right on the runway, the need to take your mining rig to space becomes quite pointless and the whole concept feels a bit like a cheap exploit.

Is there a mod or a way I could disable specific materials being mine-able on Kerbin? I'd like to keep the ore I need for refueling my long distance aircraft, but other expensive materials like uranite or rare metals used in and provided by various mods should be either absent or extremely rare on Kerbin.