Pollucite
From Plastics Wiki, free encyclopedia
Pollucite is a mineral, one of the Zeolite group pf minerals. Formula (CsNa)2Al2Si4O122H2O. It is important as a significant ore of Caesium and sometimes Rubidium which may also occur in some specimens.
Discovered in 1846 in Elba and Italy, it is named for Pollux, the twin of Castor on the grounds that it is often found associated with Castorite or Petalite.

