﻿380 
  Judd 
  and 
  Ilidden—Euly 
  in 
  North 
  Carolina. 
  

  

  usual 
  form 
  of_ 
  these 
  crystals 
  is 
  shown 
  in 
  fi^. 
  7, 
  where 
  the 
  fapPR 
  

   .(0001), 
  a(1120), 
  .(1011) 
  and 
  ^2243) 
  arelieaky 
  ^^^^^^^^ 
  

  

  a 
  

  

  a 
  

  

  oped. 
  On 
  some 
  of 
  the 
  crystals 
  the 
  prism 
  is 
  very 
  prominent 
  

   be.ng 
  8-;^ 
  ,n 
  length 
  in 
  the 
  direction 
  of 
  the 
  .-a^fw 
  le 
  the 
  

   pyramid 
  is 
  only 
  1-5- 
  On 
  others 
  the 
  pyramid 
  is'only 
  verj 
  

  

  