When we think about the things that we want to have with us decades from now when we're celebrating the holidays with our loved ones extra special crystal definitely comes to mind. (viewfrom5ft2.com)
It is the material's very special crystal structure that does the trick, in connection with an astonishing new physical effect; in countless tiny cages within the crystal, cerium atoms are enclosed. (sciencedaily.com)
You can upgrade yours by fortifying them with special crystals. (onrpg.com)