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An evenly layered sedimentary rock, such as Shale, Bluestone, Slate, Quartzite, or Sandstone, that can be split into flat slabs. These flat slabs are often used for paving, walkways, and patios.

Synonyms and Related Terms

dalle (Fr.); xisto (Port.); shale; bluestone; slate; sandstone

Resources and Citations

  • G.S.Brady, Materials Handbook, McGraw-Hill Book Co., New York, 1971 Comment: p.729
  • Dictionary of Building Preservation, Ward Bucher, ed., John Wiley & Sons, Inc., New York City, 1996
  • Anne Grimmer, Glossary of Building Stone Terms, A Glossary of Historic Masonry Deterioration Problems and Preservation Treatments, National Park Service, Washington DC, 1984
  • Random House, Webster's Encyclopedic Unabridged Dictionary of the English Language, Grammercy Book, New York, 1997
  • The American Heritage Dictionary or Encarta, via Microsoft Bookshelf 98, Microsoft Corp., 1998