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siltstone

 - 3 dictionary results

silt⋅stone

  [silt-stohn]
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–noun Petrography.
a very fine-grained sandstone, mainly consolidated silt.
Origin:
1925–30; silt + stone
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
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silt·stone   (sĭlt'stōn')   
n.  A fine-grained rock of consolidated silt.
The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2009 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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Science Dictionary
siltstone   (sĭlt'stōn')  Pronunciation Key 
A fine-grained sedimentary rock consisting primarily of compacted and hardened silt. Siltstones are similar to shale but without laminations. They vary in color from black or gray to brown or red.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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