﻿ADIRONDACK 
  MAGNETIC 
  IRON 
  ORES 
  35 
  

  

  been 
  attempted 
  on 
  a 
  commercial 
  scale, 
  though 
  it 
  has 
  been 
  used 
  

   successfully 
  elsewhere 
  for 
  similar 
  materials. 
  

  

  The 
  concentrates 
  from 
  the 
  Adirondack 
  mills 
  carry 
  on 
  the 
  average 
  

   60 
  to 
  65 
  per 
  clnt 
  iron. 
  Besides 
  raising 
  the 
  iron 
  content, 
  magnetic 
  

   concentration 
  arfbrds 
  a 
  partial 
  elimination 
  of 
  the 
  phosphorus 
  and 
  sul- 
  

   fur, 
  important 
  advantages 
  for 
  some 
  ores. 
  In 
  fact 
  the 
  treatment 
  of 
  the 
  

   Old 
  Bed 
  ores 
  at 
  Mineville 
  is 
  designed 
  particularly 
  to 
  reduce 
  the 
  phos- 
  

   phorus, 
  and 
  the 
  concentration 
  is 
  rather 
  incidental 
  to 
  that 
  purpose. 
  

  

  The 
  costs 
  of 
  mining 
  and 
  milling 
  differ 
  of 
  course 
  according 
  to 
  

   local 
  conditions. 
  With 
  a 
  modern 
  plant 
  75 
  cents 
  per 
  ton 
  is 
  prob- 
  

   ably 
  a 
  fair 
  average 
  for 
  underground 
  mining 
  under 
  favorable 
  cir- 
  

   cumstances. 
  Quarry 
  work 
  has 
  been 
  conducted 
  for 
  less 
  than 
  half 
  

   that 
  amount 
  at 
  Benson 
  Mines. 
  Magnetic 
  concentration 
  costs 
  

   from 
  25 
  to 
  40 
  cents 
  per 
  ton 
  of 
  material 
  treated. 
  For 
  a 
  period 
  of 
  

   ten 
  months 
  during 
  1900, 
  the 
  total 
  cost 
  of 
  producing 
  concentrates 
  

   at 
  Benson 
  Mines, 
  including 
  mining, 
  milling 
  and 
  general 
  expense, 
  

   is 
  said 
  to 
  have 
  been 
  $2 
  per 
  ton, 
  which 
  is 
  equivalent 
  to 
  about 
  80 
  

   cents 
  per 
  ton 
  of 
  the 
  crude 
  material 
  handled. 
  

  

  Statistics 
  of 
  ore 
  production 
  

  

  The 
  production 
  of 
  magnetite 
  in 
  the 
  Adirondacks 
  has 
  amounted 
  

   in 
  all 
  to 
  something 
  over 
  35,000,000 
  long 
  tons. 
  The 
  total 
  can 
  not 
  

   be 
  stated 
  accurately, 
  though 
  there 
  is 
  little 
  doubt 
  that 
  the 
  figure 
  

   given 
  represents 
  a 
  minimum. 
  The 
  actual 
  production 
  may 
  be 
  

   larger 
  by 
  two 
  or 
  three 
  million 
  tons. 
  The 
  following 
  table 
  gives 
  the 
  

   nearest 
  possible 
  approximation 
  of 
  the 
  output 
  distributed 
  among 
  

   the 
  leading 
  districts; 
  it 
  is 
  based 
  upon 
  the 
  statistics 
  included 
  in 
  the 
  

   reports 
  by 
  Smock 
  and 
  Putnam 
  and 
  in 
  other 
  publications 
  and 
  upon 
  

   records 
  of 
  mining 
  companies 
  that 
  have 
  been 
  obtainable. 
  The 
  

   statistics 
  are 
  carried 
  down 
  to 
  the 
  end 
  of 
  1906. 
  They 
  are 
  based 
  on 
  

   the 
  marketable 
  product 
  as 
  shipped 
  to 
  the 
  furnace. 
  

  

  DISTRICT 
  LONG 
  TONS 
  

  

  Mineville 
  25 
  000 
  000 
  j 
  

  

  Lyon 
  Mountain 
  3 
  500 
  000 
  j 
  • 
  

  

  Arnold 
  and 
  Palmer 
  hills 
  2 
  000 
  000 
  

  

  Hammondville 
  2 
  000 
  000 
  

  

  Saranac 
  valley 
  500 
  000 
  

  

  Fort 
  Ann 
  350 
  000 
  

  

  St 
  Lawrence 
  county 
  300 
  000 
  

  

  Other 
  mines 
  2 
  000 
  000 
  

  

  Total 
  35 
  650 
  000 
  

  

  