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60NdNEODIMIO-NEODYMIUMMASS: 144.24 u1s22s22p63s23p64s23d104p65s24d105p66s24f4MELTING POINT:1297 KBOILING POINT:3347 KDENSITY:7.01 g·cm−3DISCOVERY: 1885 (Carl Auer von Welsbach)It is present in significant quantities in the oreminerals monazite and basnasite . Neodymium is not found naturally inmetallic form or unmixed with other lanthanides, and it is usuallyrefined for general use. Although neodymium is classed as a "rareearth", it is a fairly common element. The color of neodymiumcompounds—due to the Nd3+ion—is often a reddish-purple but itchanges with the type of lighting.