Description
A dense, fine-grain sedimentary rock that is an intermediate between shale and slate. Argillite is composed of clay and aluminum silicate. It can be found in white, gray, and red colors. Some varieties split into slate-like sheets. Argillite has been used for sinks, counter tops, roofing, and walkways. Argillite is also known aas a traditional carving material used by the Haidas, native Americans that inhabit the Queen Charlotte Islands in British Columbia. The stone is easily carved when moist, but brittle when dry.
Synonyms and Related Terms
argillyte; argellite; argillaceous slate;argilita (Esp.); argilito (Port.); argilliet (Ned.)
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Last updated on: 7/2/2009 12:43:58 PM
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