﻿PEALE.J 
  LIST 
  OP 
  MINERALS. 
  101 
  

  

  J 
  ASVEli 
  (red 
  varieties). 
  Along 
  the 
  Gunnison 
  River 
  in 
  Dakota 
  sandstones 
  above 
  mouth 
  of 
  

   Lake 
  Fork. 
  

  

  Lignite. 
  (See 
  Coal) 
  

  

  Malachite 
  (green 
  carbonate 
  of 
  copper). 
  Staining 
  iron 
  ores 
  in 
  Unaweep 
  Canon, 
  associated 
  

   with 
  pyrite. 
  

  

  Mica 
  (muscovitc). 
  In 
  schists 
  and 
  granites 
  of 
  the 
  crest 
  of 
  the 
  Uncompahgre 
  Plateau, 
  in 
  

   Unaweep 
  Canon, 
  and 
  the 
  granite 
  exposures 
  of 
  the 
  Uncompahgre 
  Plateau 
  north 
  of 
  Una- 
  

   weep 
  Canon. 
  

  

  Obsidian. 
  In 
  trachytes 
  south 
  of 
  Gunnison 
  River. 
  

  

  Orthoclase. 
  (See 
  Feldspar.) 
  

  

  Pyrite. 
  Associated 
  with 
  quartz 
  and 
  hematite 
  in 
  Unaweep 
  Canon. 
  

  

  Quartz. 
  In 
  granites 
  and 
  schists 
  of 
  the 
  Gunnison 
  River 
  and 
  Uncampahgre 
  Plateau, 
  and 
  ia 
  

   the 
  red 
  sandstones 
  bordering 
  the 
  Unaweep 
  Canon. 
  

  

  Salt. 
  (See 
  Halite.) 
  

  

  Sanidine. 
  (See 
  Feldspar.) 
  

  

  Selenite. 
  (See 
  Gypsum.) 
  

  

  Tufa 
  (calcareous). 
  At 
  the 
  springs 
  in 
  White 
  Earth 
  Valley, 
  and 
  in 
  Uncompahgre 
  Park. 
  

  

  