Good day! I would like to propose an idea:

Uranium is considered a rare earth element and looks strange in a mixture with other ores.

You can do it differently, instead of mixing all the ores with all the others.

Iron - Copper - Stone (this is a product of metal emissions)
Copper - Iron - Stone (this is a product of metal emissions)
Coal - Stone (this is a product of wood decomposition)
Uranium - Stone (this is a product of radioactive emissions)

The main principle remains the same, but it looks more logical.

Thank you