﻿THE 
  MINING 
  AND 
  QUARRY 
  INDUSTRY 
  I907 
  6l 
  

  

  Granite 
  

  

  Under 
  the 
  head 
  of 
  granite 
  are 
  grouped 
  by 
  the 
  trade 
  the 
  crystal- 
  

   line 
  rocks 
  in 
  which 
  feldspar 
  and 
  other 
  silicates 
  are 
  the 
  predom- 
  

   inant 
  minerals. 
  Besides 
  granite 
  in 
  the 
  strict 
  sense 
  the 
  class 
  com- 
  

   prises 
  syenite, 
  diorite, 
  gabbro 
  and 
  anorthosite, 
  in 
  fact 
  practically 
  

   all 
  of 
  the 
  igneous 
  rocks, 
  as 
  well 
  as 
  many 
  gneisses 
  and 
  schists, 
  

   that 
  are 
  adapted 
  for 
  building 
  construction 
  or 
  ornamental 
  pur- 
  

   poses. 
  The 
  fine 
  grained 
  crystalline 
  rocks 
  known 
  as 
  trap, 
  how- 
  

   ever, 
  are 
  usually 
  separated 
  from 
  the 
  class 
  owing 
  to 
  their 
  some- 
  

   what 
  special 
  qualities 
  and 
  will 
  be 
  treated 
  here 
  under 
  their 
  own 
  

   title. 
  

  

  There 
  are 
  two 
  principal 
  areas 
  where 
  these 
  rocks 
  occur 
  in 
  New 
  

   York, 
  the 
  one 
  being 
  the 
  Adirondack 
  region 
  and 
  the 
  other 
  the 
  

   lower 
  Hudson 
  valley 
  and 
  the 
  bordering 
  highlands. 
  Both 
  regions 
  

   afford 
  a 
  variety 
  of 
  both 
  massive 
  and 
  gneissoid 
  types 
  in 
  great 
  

   abundance, 
  yet 
  the 
  quarries 
  have 
  not 
  been 
  developed 
  as 
  yet 
  on 
  

   a 
  scale 
  at 
  all 
  commensurate 
  with 
  the 
  local 
  markets. 
  The 
  present 
  

   output 
  represents 
  but 
  a 
  fraction 
  of 
  the 
  granite 
  actually 
  used 
  each 
  

   year 
  for 
  building 
  or 
  other 
  purposes 
  ; 
  by 
  far 
  the 
  greater 
  part 
  is 
  

   brought 
  in 
  from 
  other 
  states 
  and 
  some 
  is 
  imported 
  from 
  foreign 
  

   countries. 
  

  

  The 
  returns 
  received 
  from 
  the 
  quarries 
  for 
  1907 
  show 
  an 
  output 
  

   valued 
  at 
  $195,900, 
  as 
  compared 
  with 
  a 
  value 
  of 
  $255,189 
  for 
  the 
  

   preceding 
  year. 
  The 
  value 
  of 
  the 
  building 
  stone 
  quarried 
  was 
  

   $84,774 
  against 
  $231,190 
  in 
  1906, 
  the 
  decrease 
  being 
  due 
  to 
  the 
  

   smaller 
  operations 
  in 
  the 
  quarries 
  of 
  Westchester 
  county 
  which 
  

   supply 
  building 
  stone 
  to 
  New 
  York 
  city. 
  The 
  production 
  of 
  

   granite 
  for 
  other 
  purposes 
  was 
  as 
  follows 
  : 
  monumental 
  stone, 
  

   $9613, 
  against 
  $4119 
  in 
  1906; 
  crushed 
  stone, 
  $92,950 
  against 
  

   $13,980; 
  rubble 
  and 
  riprap, 
  $5600 
  against 
  $2423; 
  paving 
  blocks, 
  

   curbing 
  and 
  miscellaneous, 
  $2963, 
  against 
  $3477. 
  The 
  quantity 
  

   of 
  crushed 
  stone 
  made 
  was 
  approximately 
  111,150 
  cubic 
  yards 
  

   against 
  16,800 
  cubic 
  yards 
  in 
  1906. 
  Westchester 
  county 
  contrib- 
  

   uted 
  a 
  production 
  valued 
  at 
  $76,820, 
  as 
  compared 
  with 
  $172,845 
  

   in 
  the 
  preceding 
  year. 
  The 
  remainder 
  of 
  the 
  production 
  was 
  dis- 
  

   tributed 
  among 
  the 
  following 
  counties 
  : 
  Clinton, 
  Essex, 
  Fulton, 
  

   Herkimer, 
  Jefferson, 
  New 
  York 
  and 
  Warren 
  counties. 
  There 
  

   were 
  14 
  quarries 
  operated 
  during 
  the 
  year, 
  or 
  five 
  less 
  than 
  in 
  

   1906. 
  

  

  