Here are some ways
cobalt is used:
Form alloys
Permanent magnets
Cutting tools
Dye
Jet engines
Gas turbines
Magnetic steel
Stainless steals

Some interesting facts:
- The way cobalt got its name is miner believed "that malicious goblins placed in the silver ore"
- It is estimated that there are about 1 million tons of cobalt compounds in the United States.
- There are millions of tons of cobalt compounds expanded across the ocean floor but we do not have the technology to retrieve it.

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