Ytterbium

minerals

xenotime

hingganite

keiviite

Formula: Yb
Ytterbium is an element which is a lanthanide and rare earth metal; it does not exist naturally in the native state on Earth, but micrograins have been found in Moon rocks.
Specific gravity: 6.97
Colour: Silvery white
Melting point: 824oC, 1097 K
Boiling point: 1200oC, 1473 K
Solubility: Dissolves rapidly in mineral acids (ChC)
Abundance: In the earth’s crust: 3 parts per million by weight, 0.3 parts per million by moles; in the solar system: 1 part per billion by weight, 10 parts per trillion by moles (ChC).
When present in compounds, ytterbium exists in the trivalent state, Yb3+.

Ytterbium-bearing minerals include:

Oxides
samarskite-(Yb)

Phosphates
xenotime-(Yb)

Nesosilicates
hingganite-(Yb)

Sorosilicates
keiviite-(Yb)

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