luxullianite

(luk-sul/i-an-it), n. [ (see def.) + -ite2.] A rock consisting of a fine grained mixture of schorl, feldspar, and quartz, through which are distributed large crystals of red orthoclase, found at Luxullian or Luxulian in Cornwall, England. From this rock was made the sarcophagus of the Duke of Wellington, in St. Paul’s Cathedral, London. luxurt, ». [Irreg.