Technetium

Technetium is an ore in Azure Mines Modded that gives around 300M XP and is found at 5000-6000m (without the use of the Corrupted Reality). It is used to make the Technetium and Tritium Pickaxe and is a great XP farming ore until you reach Azure Miner rank. It is harder to spot in the Collapsing Reality (5900-6000m) because the colour of the ore blends in well with the stone and it’s dark there too.

Trivia:

This ore’s atomic symbol in real life is Tc, not Te, but Tc was already taken by Time Crystal.