'Celestite' definitions:

Definition of 'celestite'

(from WordNet)
noun
A mineral consisting of strontium sulphate

Definition of 'Celestite'

From: GCIDE
  • Celestine \Cel"es*tine\, Celestite \Cel"es*tite\,, n. [LL. caelestinus bine.] (Min.) Native strontium sulphate, a mineral so named from its occasional delicate blue color. It occurs crystallized, also in compact massive and fibrous forms. [1913 Webster] Celestine