﻿CLAYS 
  OF 
  NEW 
  YORK 
  

  

  623 
  

  

  There 
  are 
  three 
  districts 
  recognized. 
  

  

  The 
  section 
  exhibited 
  by 
  the 
  clay 
  deposits 
  involves 
  the 
  following 
  

   members, 
  beginning 
  at 
  the 
  bottom. 
  

  

  1 
  Raritan 
  potters' 
  clay 
  bed 
  

  

  2 
  Raritan 
  fire 
  clay 
  bed 
  

  

  3 
  Fire 
  sand 
  

  

  4 
  Woodbridge 
  fire 
  clay, 
  a 
  most 
  important 
  bed 
  

  

  5 
  Pipe 
  clay 
  

  

  6 
  A 
  bed 
  of 
  feldspar, 
  commonly 
  called 
  kaolin, 
  being 
  really 
  a 
  

   mixture 
  of 
  kaolinite 
  with 
  white 
  quartzose 
  sand, 
  and 
  fragments 
  of 
  

   quartz 
  which 
  are 
  rounded 
  on 
  their 
  edges 
  

  

  7 
  Another 
  kaolin 
  bed 
  

  

  8 
  South 
  Amboy 
  fire 
  clay 
  bed, 
  20 
  feet 
  thick 
  

  

  9 
  Stoneware 
  clay 
  

  

  These 
  clays 
  form 
  the 
  basis 
  of 
  an 
  important 
  fire 
  brick 
  and 
  pottery 
  

   industry. 
  

  

  The 
  Quaternary 
  brick 
  clays 
  are 
  abundant 
  in 
  the 
  region 
  around 
  

   Hackensack, 
  near 
  'New 
  York 
  city. 
  

  

  Recently 
  important 
  beds 
  of 
  light 
  or 
  white 
  burning 
  plastic 
  clays 
  

   have 
  been 
  developed 
  in 
  the 
  Tertiary 
  formation 
  of 
  southeastern 
  Xew 
  

  

  J 
  ersey. 
  

  

  Nebraska 
  

   The 
  clay 
  resources 
  of 
  this 
  state 
  are 
  similar 
  to 
  those 
  of 
  Kansas. 
  

   Biick 
  clays 
  are 
  used 
  locally 
  in 
  the 
  vicinity 
  of 
  the 
  more 
  important 
  

   towns. 
  A 
  fine 
  kaolin-like 
  clay 
  is 
  found 
  on 
  Pine 
  creek 
  in 
  Cherry 
  co. 
  

  

  North 
  Carolina^ 
  

   The 
  clay 
  deposits 
  of 
  !N"orth 
  Carolina 
  may 
  be 
  divided 
  into 
  

   Residual: 
  kaolins, 
  fire 
  clays, 
  and 
  impure 
  clays 
  

   Sedimentary: 
  coastal 
  plain 
  clays, 
  of 
  Cretaceous, 
  or 
  Tertiary 
  age 
  

   Sedimentary 
  surface 
  clays 
  (for 
  brick 
  and 
  pottery) 
  are 
  found 
  

  

  mainly 
  along 
  the 
  streams 
  and 
  low 
  lands 
  in 
  the 
  Piedmont 
  plateau 
  

  

  and 
  mountain 
  counties. 
  

  

  1 
  N. 
  C. 
  geol. 
  surv. 
  H. 
  Eies. 
  Qlays 
  and 
  clay 
  industry 
  of 
  l^orth 
  Carolina, 
  

   hulleiin 
  no. 
  13. 
  

  

  