'Luxullianite' definitions:

Definition of 'Luxullianite'

From: GCIDE

Luxullianite \Lux*ul"li*an*ite\, n. [So called from Luxullian, in Cornwall.] (Min.) A kind of granite from Luxullian, Cornwall, characterized by the presence of radiating groups of minute tourmaline crystals. [1913 Webster]