﻿656 
  

  

  NEW 
  YORK 
  STATE 
  MUSEUM 
  

  

  Co: 
  

  

  tnpo»ition 
  anc 
  

  

  i 
  fusing 
  points 
  of 
  Seger 
  cones 
  (continued) 
  

  

  N*. 
  of 
  cone 
  

  

  Composition 
  

  

  Ful 
  ng 
  point 
  

  

  1 
  

  

  2 
  

   3 
  

  

  jO.3 
  K2O 
  

   (0.7 
  CaO 
  

   j 
  0.3 
  K2O 
  

   |0.7 
  CaO 
  

   J 
  0.3 
  K2O 
  

   |0.7 
  CaO 
  

  

  /-v 
  r\ 
  ITT' 
  y^^ 
  

  

  )0.2 
  Fe203] 
  , 
  

   fO.3 
  MOsf* 
  

   )0.1 
  Fe203i 
  , 
  

   0.4 
  Al203r 
  

   ) 
  0.05 
  Fe203 
  ) 
  , 
  

   ^0.45Al2O3P 
  

  

  SiOs 
  

  

  Si02 
  

  

  SiOa 
  

  

  ojpr 
  

  

  2 
  102 
  

   2 
  138 
  

   2 
  174 
  

  

  1 
  150 
  

   1 
  170 
  

   1 
  190 
  

  

  4 
  

  

  \ 
  . 
  3 
  K^O 
  

   i 
  0.7 
  CaO 
  

  

  ^0.5 
  AI2O3 
  4 
  

  

  Si02 
  

  

  2 
  210 
  

  

  1 
  210 
  

  

  5 
  

  

  j 
  0.3 
  K2O 
  

  

  ]0.7 
  CaO 
  

  

  I 
  0.5 
  AI2O3 
  5 
  

  

  Si02 
  

  

  2 
  216 
  

  

  1 
  230 
  

  

  6 
  

  

  J 
  0.3 
  KgO 
  

  

  )0.7 
  CaO 
  

  

  : 
  0.6 
  AI2O3 
  6 
  

  

  SiOa 
  

  

  2 
  282 
  

  

  1 
  250 
  

  

  7 
  

  

  I 
  0.3 
  K2O 
  

   iO.7 
  CaO 
  

  

  .0.7 
  AI2O3 
  7 
  

  

  SiOg 
  

  

  2 
  318 
  

  

  1 
  270 
  

  

  8 
  

  

  j 
  0.3 
  K2O) 
  

   |0.7 
  CaO 
  

  

  .0.8 
  AI2O3 
  8 
  

  

  Si02 
  

  

  2 
  354 
  

  

  1 
  290 
  

  

  9 
  

  

  (0.3 
  K2O 
  

   1 
  0.7 
  CaO 
  

  

  ^0.9 
  AI2O3 
  9 
  

  

  SiOa 
  

  

  2 
  390 
  

  

  1 
  310 
  

  

  10 
  

  

  jO.3 
  K2O 
  

   (0.7 
  CaO 
  

  

  .1.0 
  A]fis 
  10 
  

  

  Si02 
  

  

  2 
  426 
  

  

  1 
  330 
  

  

  11 
  

  

  ( 
  0.3 
  K2O 
  

  

  |0.7 
  CaO 
  

  

  -1.2 
  AI2O3 
  12 
  

  

  SiOa 
  

  

  2 
  462 
  

  

  1 
  350 
  

  

  12 
  

  

  J 
  0.3 
  e:20| 
  

  

  1 
  0.7 
  CaO 
  i 
  

  

  ^1.4 
  AI2O3 
  14 
  

  

  SiOa 
  

  

  2 
  498 
  

  

  1 
  370 
  

  

  13 
  

  

  J 
  0.3 
  K20) 
  

   I0.7 
  CaO 
  1 
  

  

  1.6 
  AI2O3 
  16 
  

  

  Si02 
  

  

  2 
  634 
  

  

  1 
  390 
  

  

  14 
  

  

  ( 
  0.3 
  K2O 
  i 
  

   |0.7 
  CaO 
  1 
  

  

  ■1.8 
  AI2O3 
  18 
  

  

  Si02 
  

  

  2 
  670 
  

  

  1 
  410 
  

  

  15 
  

  

  i 
  0.3 
  K2O 
  j 
  

   |0.7 
  CaO 
  1 
  

  

  -2.1 
  AI2O3 
  21 
  

  

  Si02 
  

  

  2 
  606 
  

  

  1 
  430 
  

  

  16 
  

  

  ]0.3 
  K2O) 
  

  

  |0.7 
  CaO 
  ( 
  

  

  -2.4 
  AI2O3 
  24 
  

  

  Si02 
  

  

  2 
  642 
  

  

  1 
  450 
  

  

  17 
  

  

  jO.3 
  K2O) 
  

   |0.7 
  CaO 
  j 
  

  

  2.7 
  AI2O3 
  27 
  

  

  Si02 
  

  

  2 
  678 
  

  

  1 
  470 
  

  

  18 
  

  

  jO.3 
  K2O) 
  

  

  [0.7 
  CaO 
  \ 
  

  

  3.1 
  AI2O3 
  31 
  

  

  SiOg 
  

  

  2 
  714 
  

  

  1 
  490 
  

  

  19 
  

  

  jO.3 
  K2O 
  

  

  1 
  0.7 
  CaO 
  ( 
  

  

  3.5 
  AI2O3 
  35 
  

  

  SiOj 
  

  

  2 
  750 
  

  

  1 
  610 
  

  

  20 
  

  

  jO.3 
  K2O) 
  

   (0.7 
  CaOJ 
  

  

  3.9 
  AI2O3 
  39 
  

  

  Si02 
  

  

  2 
  786 
  

  

  1 
  630 
  

  

  21 
  

  

  j 
  0.3 
  K2O 
  

  

  |0.7 
  CaO 
  j 
  

  

  4.4 
  AlgOs 
  44 
  

  

  SiOg 
  

  

  2 
  822 
  

  

  1 
  660 
  

  

  22 
  

  

  J 
  0.3 
  K20] 
  

   1 
  n 
  7 
  nnO 
  

  

  .4.9 
  AI2O3 
  49 
  

  

  SiOj 
  

  

  2 
  858 
  

  

  1 
  670 
  

  

  