Ytterbium.. is a chemical element with the symbol Yb and atomic number 70. A soft silvery metallic element.

Ytterbium is found with other rare earth elements in several rare minerals. It is most often recovered commercially from monazite sand (0.03% ytterbium). The element is also found in euxenite and xenotime. Ytterbium is normally difficult to separate from other rare earths but ion-exchange and solvent extraction techniques developed in the late 20th century have simplified separation. Known compounds of ytterbium are rare—they haven't been well characterized yet.

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Ytterbium the rare earth elements....

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Tools : COPIC (.Too) pigment 0.03 + COPIC (.Too) pigment 0.05 + SAKURA micron 0.5 + SAKURA micron 1.0

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