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greensand

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greensand


  2  definitions  found 
 
  From  Webster's  Revised  Unabridged  Dictionary  (1913)  [web1913]: 
 
  Greensand  \Green"sand`\  (-s?nd`),  n.  (Geol.) 
  A  variety  of  sandstone,  usually  imperfectly  consolidated, 
  consisting  largely  of  glauconite,  a  silicate  of  iron  and 
  potash  of  a  green  color,  mixed  with  sand  and  a  trace  of 
  phosphate  of  lime. 
 
  Note:  [hand]Greensand  is  often  called  {marl},  because  it  is  a 
  useful  fertilizer.  The  greensand  beds  of  the  American 
  Cretaceous  belong  mostly  to  the  Upper  Cretaceous. 
 
  From  WordNet  r  1.6  [wn]: 
 
  greensand 
  n  :  an  olive-green  sandstone  containing  glauconite 




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