﻿98 
  NEW 
  YORK 
  STATE 
  MUSEUM 
  

  

  friable 
  magnetite 
  carrying 
  apatite 
  and 
  otherwise 
  resembling 
  the 
  

   Nelson 
  Bush 
  ore. 
  The 
  gray 
  vein 
  is 
  so 
  named 
  because 
  of 
  the 
  light 
  - 
  

   colored 
  gangue 
  minerals 
  which 
  are 
  intermixed 
  with 
  the 
  magnetite 
  

   so 
  as 
  to 
  lend 
  a 
  mottled 
  gray 
  appearance 
  to 
  the 
  ore 
  when 
  seen 
  in 
  

   hand 
  specimens. 
  It 
  is 
  slightly 
  altered. 
  In 
  the 
  blue 
  vein 
  the 
  ore 
  

   has 
  been 
  changed 
  almost 
  completely 
  to 
  martite, 
  the 
  surface 
  of 
  

   which 
  is 
  steel 
  blue 
  in 
  color. 
  The 
  change 
  no 
  doubt 
  is 
  to 
  be 
  explained 
  

   as 
  the 
  effect 
  of 
  weathering 
  assisted 
  perhaps 
  by 
  the 
  circulation 
  of 
  

   underground 
  waters 
  which 
  have 
  found 
  here 
  an 
  easier 
  passage 
  , 
  

   possibly 
  along 
  some 
  fissured 
  strip, 
  than 
  in 
  the 
  neighboring 
  veins. 
  

   Specimens 
  of 
  this 
  ore 
  frequently 
  show 
  veinings 
  of 
  jasper 
  and 
  cal- 
  

   cite, 
  deposited 
  by 
  such 
  circulations. 
  Analyses 
  of 
  the 
  ore 
  from 
  the 
  

   blue 
  vein 
  are 
  given 
  herewith. 
  No. 
  1 
  has 
  been 
  contributed 
  by 
  Mr 
  

   S. 
  Le 
  Fevre. 
  No. 
  2 
  is 
  quoted 
  from 
  the 
  paper 
  by 
  Maynard 
  on 
  " 
  The 
  

   Iron 
  Ores 
  of 
  Lake 
  Champlain 
  "; 
  Maynard 
  and 
  Wendell 
  analysts. 
  

  

  1 
  2 
  

  

  . 
  Fe 
  2 
  3 
  83.14 
  85.54 
  

  

  FeO 
  5.27 
  2.39 
  

  

  Si0 
  2 
  7-64 
  7-56 
  

  

  Ti0 
  2 
  26 
  

  

  S 
  035 
  .16 
  

  

  P 
  2 
  s 
  53i 
  -43 
  

  

  A1 
  2 
  3 
  1.72 
  2.71 
  

  

  MnO 
  .31 
  

  

  CaO 
  64 
  .98 
  

  

  MgO 
  108 
  .48 
  

  

  Cu 
  -. 
  . 
  005 
  

  

  Ni 
  . 
  003 
  

  

  99.662 
  100.25 
  

  

  Iron 
  62.30 
  61.74 
  

  

  Phosphorus 
  .232 
  .188 
  

  

  Manganese 
  .24 
  

  

  Titanium 
  .156 
  

  

  Open 
  cuts, 
  Finch 
  and 
  Chalifou 
  pits. 
  The 
  open 
  -cut 
  workings 
  

   south 
  of 
  the 
  Arnold 
  mine 
  were 
  the 
  sources 
  from 
  which 
  ore 
  was 
  

   obtained 
  during 
  the 
  early 
  period, 
  but 
  they 
  were 
  abandoned 
  with 
  

   the 
  discovery 
  of 
  the 
  larger 
  deposits 
  to 
  the 
  north. 
  The 
  only 
  infor- 
  

   mation 
  about 
  them 
  that 
  has 
  been 
  placed 
  on 
  record 
  is 
  contained 
  

   in 
  Emmons's 
  report. 
  There 
  are 
  four 
  parallel 
  deposits, 
  according 
  

   to 
  this 
  authority, 
  the 
  richest 
  being 
  from 
  2 
  to 
  8 
  feet 
  wide, 
  known 
  

   as 
  the 
  blue 
  vein, 
  with 
  martite. 
  At 
  the 
  time 
  of 
  the 
  report, 
  it 
  had 
  

  

  