Dinja rari ħafifa u art rari tqila ·Earth rari ħafifa ·Lanthanum, ċerju, praseodimju, neodimju, prometju, samarium, europium, gadolinju. ·Earth rari tqila ·Terbju, dysprosium, holmium, erbium, thulium, ytterbium, lutetium, scandium, u ittriju. ·Skond il-karatteristiċi minerali, huwa...
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