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   69    

69 Tm Thulium

Lanthanoid, mass: 168.93 u, 1 stable isotope (169), abundance rank (earth/space): 69/81

Click image to magnify. Ultrapure crystalline thulium, 22.3 grams. Original size in cm: 2.5 x 3
Thulium front Thulium back
Thulium is the least abundant of the stable lanthanoids. Its extraction is very extensive, so it is not often used and doesn't have any important application so far.

Thulium same piece


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