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Thulium

physical science Maturity 7-9

Thulium is a special metal.

Monazit - Madagaskar.jpg
Monazit - Madagaskar.jpg
It looks like bright silver. It is very hard to find in the ground. We use it to make lasers. It can even be in money!
Per Teodor Cleve c1885.jpg
Per Teodor Cleve c1885.jpg
Have you ever seen a laser?

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File:Per Teodor Cleve c1885.jpg
Per Teodor Cleve c1885.jpg
File:Monazit - Madagaskar.jpg
Monazit - Madagaskar.jpg
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📚 Content adapted from Wikipedia | Readability: FK 11.0 | Vital Level 4