Minerals & Gemstone 480x104
Minerals & Gemstone 480x104
wpdiamonds.com


Advertising Information





Glossary of Terms
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z ALL



Rare earth elements
Group of heavy elements that are very similar in chemical properties and are once thought to be extremely rare. They take up numbers 57 through 71 on the periodic table.

Rare earth elements are also known as the lanthanides.




< Back