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A dark, bubble-filled, glassy, rock formed from lava. Large areas of scoria are found in volcanic craters and frothy areas of the magma flow.

Synonyms and Related Terms

volcanic cinders; scum; dross; pahoehoe; escoria (Esp.); scorie volcanique ( Fr.); escória (Port.); scoria (Ned.)

Additional Images

Sources Checked for Data in Record

  • Anne Grimmer, Glossary of Building Stone Terms, A Glossary of Historic Masonry Deterioration Problems and Preservation Treatments, National Park Service, Washington DC, 1984
  • Encyclopedia Britannica, Comment: "scoria." Encyclopædia Britannica. 2004. Encyclopædia Britannica Premium Service. 9 Dec. 2004 .
  • 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

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