'Geyserite' definitions:

Definition of 'Geyserite'

From: GCIDE
  • Geyserite \Gey"ser*ite\ (g[imac]"z[~e]r*[imac]t or g[imac]"s[~e]r*[imac]t; 277), n. [From Geyser.] (Min.) A loose hydrated form of silica, a variety of opal, deposited in concretionary cauliflowerlike masses, around some hot springs and geysers. [1913 Webster]