In real life, iridium is a rare silver, brittle metal that can be hazardous in a fine dust and has toxic radioactive isotopes. It is often used to produce hard, durable surfaces for high-precision tools and machine parts.
==UsesTool Upgrades==Iridium Bars are required in the final upgrade for tools, as well as other end-game items, such as the Iridium Sprinkler.
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