21st Century
Mining for
K-12 Educators

The processing and use of minerals and metals

Rare Earth Elements


Rare Earths, or lanthanides on the periodic table, are not really rare at all, but do not occur in high concentrations in naturally occurring rocks and minerals.  They were originally thought of as soil or earth, thus the term “rare earth”.  Today “Rare Earths” have many uses in electronics and other industries as discussed in this lecture.

Educators who wish to use portions of these free online lectures are welcome to do so as long as credit is given to CMAEF for its content.

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