﻿NO. 
  1952. 
  NEW 
  METEORITE 
  FROM 
  CULLI80N, 
  KANSAS— 
  MERRILL. 
  329 
  

  

  Chemical 
  and 
  mechanical 
  analyses 
  of 
  the 
  stone, 
  by 
  Dr. 
  J. 
  E. 
  Whit- 
  

   field, 
  yielded 
  results 
  as 
  below. 
  ^ 
  

  

  A 
  separation 
  by 
  means 
  of 
  an 
  electromagnet 
  and 
  treatment 
  of 
  the 
  

   residue 
  with 
  iodme 
  yielded 
  — 
  

  

  Per 
  cent. 
  

  

  Troilite(?) 
  6.00 
  

  

  Metallic 
  iron 
  19. 
  40 
  

  

  Silicate 
  minerals 
  74. 
  50 
  

  

  Schreibersite 
  10 
  

  

  100. 
  00 
  

   The 
  metallic 
  portion 
  yielded— 
  

  

  Per 
  cent. 
  

  

  Silicon 
  129 
  

  

  Sulphur 
  Trace. 
  

  

  Phosphorus 
  071 
  

  

  Nickel 
  9. 
  207 
  

  

  Cobalt 
  507 
  

  

  Copper 
  040 
  

  

  Chromium 
  160 
  

  

  Carbon 
  088 
  

  

  Manganese 
  080 
  

  

  Iron 
  89.700 
  

  

  99. 
  982 
  

  

  No 
  traces 
  found 
  of 
  molybdenum, 
  tungsten, 
  or 
  vanadium. 
  

   The 
  silicate 
  portion 
  yielded 
  — 
  

  

  Per 
  cent. 
  

  

  Silica 
  47. 
  36 
  

  

  Alumina 
  5.67 
  

  

  Ferric 
  oxide 
  10 
  

  

  Ferrous 
  oxide 
  11. 
  25 
  

  

  Lime 
  84 
  

  

  Magnesia 
  31. 
  72 
  

  

  Manganese 
  protoxide 
  30 
  

  

  Soda 
  2. 
  42 
  

  

  Potash 
  23 
  

  

  Titanic 
  oxide 
  00 
  

  

  99.95 
  

  

  Combining 
  the 
  metallic 
  and 
  nonmetallic 
  portions 
  and 
  recalculating 
  

   after 
  making 
  the 
  very 
  unsafe 
  assumptions 
  that 
  the 
  material 
  called 
  

   troilite 
  is 
  all 
  the 
  monosulphide, 
  and 
  that 
  the 
  schreibersite 
  conforms 
  to 
  

   the 
  formula 
  FcoNiP, 
  the 
  following 
  figures 
  are 
  obtained, 
  representing 
  

   the 
  composition 
  of 
  the 
  stone 
  in 
  mass 
  or 
  bulk: 
  

  

  Per 
  cent. 
  

  

  Silica 
  (SiO,) 
  35. 
  30 
  

  

  Alumina 
  (AUOs) 
  4. 
  24 
  

  

  Ferric 
  iron 
  (FeaOs) 
  75 
  

  

  Ferrous 
  iron 
  (FeO) 
  8.38 
  

  

  Lime(CaO) 
  62 
  

  

  • 
  This 
  analysis 
  is 
  one 
  of 
  several 
  made 
  by 
  Doctor 
  Whitfield 
  for 
  the 
  present 
  writer 
  under 
  a 
  grant 
  from 
  

   the 
  National 
  Academy 
  of 
  Sciences, 
  to 
  which 
  body 
  he 
  is 
  indebted 
  for 
  the 
  privilege 
  of 
  utiUzing 
  the 
  same 
  here. 
  

  

  