Toxium Ore

Toxium Ore is the third-most valuable ore in the game, behind Royalite Ore and Infernalite Ore. It can only occur after a depth of 750 feet.

Ore Description
Toxium is worth $100,000, and it serves well to get upgrades like the Incediolite Drill. After digging deeper than 1300 feet, however, Toxium Ore becomes worthless, as large amounts of Infernalite Ore can be collected at this depth.