All Unification does is “take Item, register it under a specific name, and everything related to it turns into it, unless the item itself is on the unification blacklist”
The reason I do Uranium Ore to Uraninite for most Uranium Ores is because of IC2 Uranium Ore otherwise being way too easy to process, not to mention me being unable to make proper use of it as an “ore” due to it then supposedly being “pure uranium 238”.
Uranium itself is a clusterfuck, so I would indeed recommend just not using the “Uranium” name in the OreDict.