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Arkose stone


A coarse-grain feldspathic sandstone. Arkose is composed of quartz, feldspar, calcite, and mica and is produced from the disintegration of granite. It is an important type of sediment as it tends to contain a significant number of fossils. In Australia, the world's largest natural monolith, Ayers Rock, is formed by massive deposits of arkose. Arkosic sandstone is used as a dimension stone in building construction.


Synonyms and Related Terms

Arkosic sandstone; arkose (Fr.); arcosa (Esp.); arcose (Port.); Arkose (Deut.); arkose (Ned.)

Other Properties

Arkose effervesces slightly with a drop of dilute hydrochloric acid


  • Dictionary of Building Preservation, Ward Bucher, ed., John Wiley & Sons, Inc., New York City, 1996
  • Anne Grimmer, Anne Grimmer, Glossary of Building Stone Terms, A Glossary of Historic Masonry Deterioration Problems and Preservation Treatments, National Park Service, Washington DC, 1984
  • Van Nostrand's Scientific Encyclopedia, Douglas M. Considine (ed.), Van Nostrand Reinhold, New York, 1976
  • Random House, Random House, Webster's Encyclopedic Unabridged Dictionary of the English Language, Grammercy Book, New York, 1997

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