Uranium Ore

Uranium can be obtained by mining Uranium Ore. It can be compressed in a Compressor to obtain Refined Uranium, which can be further used in nuclear engineering. Or, you can use your newly refined uranium for more devious purposes...

As of Tekkit 3.1.1, Uranium has an EMC value of 4,096 or 0.5 diamonds, making it the third most valuable naturally occuring material (First being tungsten, second being diamond).

Uranium is classed as fuel in equivalent exchange so to get diamonds you would have to use an energy condenser or place a Klein Star in the left hand side of the Transmuation tablet place the uranium in the fire. This would lock it to fuel but if you remove the Klein Star then place it back you can choose diamonds.