﻿FIFTH 
  REPORT 
  OF 
  THE 
  DIRECTOR 
  I908 
  

  

  217 
  

  

  SOME 
  PARALLEL 
  GROUPLXGS 
  OF 
  CALCITE 
  CRYSTALS 
  

   FROM 
  THE 
  NEW 
  JERSEY 
  TRAP 
  REGION 
  

  

  BY 
  K. 
  P. 
  WHITLOCK 
  

  

  I 
  Calcite 
  from 
  Plainfield, 
  N. 
  J. 
  

  

  The 
  attention 
  of 
  the 
  writer 
  was 
  recently 
  called 
  to 
  some 
  interest- 
  

   ing 
  parallel 
  groupings 
  of 
  calcite 
  crystals 
  which 
  were 
  collected- 
  in 
  

   1903 
  by 
  Mr 
  Alfred 
  C. 
  Hawkins 
  of 
  Sewaren, 
  N. 
  J., 
  from 
  a 
  locality 
  

  

  Fig. 
  

  

  Fig. 
  2 
  

  

  The 
  writer 
  wishes 
  to 
  

  

  about 
  I 
  mile 
  west 
  of 
  Plainfield, 
  N. 
  J. 
  

   express 
  his 
  thanks 
  to 
  ]\Ir 
  Hawkins 
  for 
  the 
  loan 
  of 
  the 
  three 
  speci- 
  

   mens 
  which 
  form 
  the 
  basis 
  of 
  this 
  note 
  and 
  for 
  his 
  description 
  of 
  

   the 
  locality. 
  

  

  The 
  calcite 
  crystals 
  were 
  collected 
  from 
  a 
  road 
  material 
  quarry 
  

   situated 
  in 
  the 
  first 
  ridge 
  of 
  the 
  Watchung 
  mountains. 
  They 
  occur 
  

   in 
  vertical 
  veins 
  in 
  Watchung 
  basalt 
  associated 
  with 
  zeolites. 
  

  

  