Phillipsite

[filipsait]

Definition

(noun.) a group of white or reddish crystalline minerals of the zeolite family consisting of a hydrous silicate of calcium and potassium and aluminum.

Checker: Terrance--From WordNet

Definition

(n.) A hydrous silicate of aluminia, lime, and soda, a zeolitic mineral commonly occurring in complex twin crystals, often cruciform in shape; -- called also christianite.

Typed by Kevin