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Lumps ampouled under argon.
Neodymium oxide is rather an attractive mauve color, as you can see if you look carefully at the original surface of these cut pieces. Hopefully they are now protected from further oxidation by the argon atmosphere inside the ampoule. Neodymium alloyed with iron and boron - NIB - is widely used to produce very strong magnets. The four gold magnets supporting the levitated graphite in the carbon cube are examples that would equally belong here.
Source: China
Size: 0.75"
Purity: 99.5%
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