﻿THE 
  MINING 
  AND 
  QUARRY 
  INDUSTRY 
  I907 
  27 
  

  

  FELDSPAR 
  

  

  The 
  output 
  of 
  this 
  mineral 
  is 
  won 
  from 
  occurrences 
  of 
  pegmatite 
  

   that 
  are 
  found 
  in 
  the 
  Adirondacks 
  and 
  in 
  the 
  southeastern 
  section 
  

   of 
  the 
  State. 
  The 
  quarries 
  near 
  Bedford, 
  Westchester 
  co., 
  have 
  

   supplied 
  in 
  recent 
  years 
  most 
  of 
  the 
  feldspar 
  suitable 
  for 
  pottery 
  

   uses, 
  while 
  the 
  Adirondack 
  quarries 
  have 
  furnished 
  material 
  for 
  

   roofing 
  purposes, 
  poultry 
  grit 
  and 
  to 
  a 
  limited 
  extent 
  for 
  pottery. 
  

   Quartz 
  is 
  always 
  associated 
  with 
  the 
  feldspar 
  and 
  it 
  is 
  sometimes 
  

   utilized 
  as 
  well. 
  

  

  The 
  combined 
  production 
  of 
  feldspar 
  and 
  quartz 
  in 
  1907 
  

   amounted 
  to 
  8723 
  long 
  tons 
  valued 
  at 
  $36,230. 
  The 
  total 
  compares 
  

   with 
  13,660 
  long 
  tons 
  valued 
  at 
  $44,350 
  in 
  the 
  preceding 
  year. 
  The 
  

   value 
  of 
  the 
  feldspar 
  sold 
  to 
  pottery 
  makers 
  ranges 
  from 
  about 
  $3 
  

   per 
  ton 
  for 
  the 
  crude 
  to 
  $7 
  per 
  ton 
  for 
  the 
  ground 
  product, 
  at 
  the 
  

   quarries 
  or 
  mills. 
  The 
  quantity 
  sold 
  for 
  other 
  purposes 
  has 
  net 
  

   been 
  included 
  in 
  the 
  totals. 
  

  

  The 
  quarries 
  near 
  Bedford, 
  owned 
  by 
  P. 
  H. 
  Kinkel's 
  Sons, 
  have 
  

   been 
  the 
  most 
  important 
  producers 
  of 
  pottery 
  feldspar. 
  A 
  part 
  of 
  

   their 
  output 
  is 
  ground 
  before 
  shipment. 
  The 
  quartz 
  is 
  sold 
  to 
  the 
  

   Bridgeport 
  Wood 
  Finishing 
  Co. 
  for 
  manufacture 
  into 
  wood 
  filler. 
  

   The 
  Hobby 
  quarry, 
  in 
  the 
  town 
  of 
  Northcastle, 
  opened 
  by 
  Otto 
  

   Bnresch, 
  was 
  also 
  worked 
  in 
  1907 
  by 
  P. 
  H. 
  Kinkel's 
  Sons. 
  The 
  

   feldspar 
  occurs 
  here 
  in 
  very 
  large 
  massive 
  crystals, 
  with 
  little 
  tend- 
  

   ency 
  toward 
  the 
  usual 
  intergrowth 
  with 
  quartz, 
  a 
  feature 
  of 
  con- 
  

   siderable 
  importance 
  in 
  quarry 
  work. 
  

  

  In 
  the 
  Adirondack 
  region, 
  the 
  Claspka 
  Mining 
  Co. 
  and 
  the 
  Inter- 
  

   national 
  Mineral 
  Co. 
  have 
  been 
  active 
  during 
  the 
  past 
  year. 
  The 
  

   quarry 
  owned 
  by 
  the 
  former 
  company 
  is 
  situated 
  near 
  Batcheller- 
  

   ville, 
  Saratoga 
  co., 
  and 
  the 
  output 
  is 
  shipped 
  to 
  potteries. 
  The 
  

   International 
  Mineral 
  Co. 
  has 
  a 
  quarry 
  and 
  mill 
  near 
  Rock 
  pond, 
  

   Essex 
  co., 
  west 
  of 
  Ticonderoga. 
  The 
  pegmatite 
  is 
  crushed 
  and 
  

   shipped 
  unsorted 
  for 
  roofing 
  material, 
  for 
  which 
  purpose 
  it 
  takes 
  

   the 
  place 
  of 
  common 
  gravel, 
  but 
  is 
  considered 
  superior 
  to 
  the 
  latter 
  

   owing 
  to 
  the 
  fact 
  that 
  the 
  feldspar 
  with 
  its 
  smooth 
  cleavage 
  planes 
  

   has 
  greater 
  adhesive 
  properties 
  when 
  applied 
  to 
  tarred 
  surfaces. 
  

   The 
  smaller 
  sizes 
  made 
  in 
  crushing 
  the 
  pegmatite 
  are 
  sold 
  for 
  

   poultry 
  grit. 
  

  

  A 
  new 
  enterprise 
  that 
  began 
  production 
  in 
  the 
  early 
  part 
  of 
  the 
  

   present 
  year 
  is 
  the 
  Crown 
  Point 
  Spar 
  Co., 
  with 
  a 
  quarry 
  near 
  

   Crown 
  Point, 
  Essex 
  co. 
  The 
  pegmatite 
  occurs 
  in 
  the 
  midst 
  of 
  

   gneissoid 
  granite 
  and 
  apparently 
  is 
  a 
  coarse 
  phase 
  of 
  the 
  granitic 
  

  

  