argillite

[n] - a sedimentary rock differing from shale in being bound by silica and from slate in having no slate cleavages
Found on http://www.webdictionary.co.uk/definition.php?query=argillite

Argillite

Ar'gil┬Ělite noun [ Greek ... clay + - lite .] (Min.) Argillaceous schist or slate; clay slate. Its colors is bluish or blackish gray, sometimes greenish gray, brownish red, etc. -- Ar`gil*lit'ic , adjective
Found on http://www.encyclo.co.uk/webster/A/119

argillite

noun a sedimentary rock differing from shale in being bound by silica and from slate in having no slate cleavages
Found on https://www.encyclo.co.uk/local/20974

Argillite

• (n.) Argillaceous schist or slate; clay slate. Its colors is bluish or blackish gray, sometimes greenish gray, brownish red, etc.
Found on http://thinkexist.com/dictionary/meaning/argillite/

argillite

(from the article `Native American art`) ...by precision of design, skill in execution, and strength of expression. These are the people who were responsible for the familiar black `slate ...
Found on http://www.britannica.com/eb/a-z/a/98

argillite

argillite An argillaceous sedimentary rock (containing clay), with or without slaty cleavages; mudrock.
Found on http://www.wordinfo.info/words/index/info/view_unit/187/

Argillite

Argillite is a usually bluish or dark grey coloured, but sometimes greenish grey or brownish-red coloured argillaceous schist or slate (clay slate).
Found on http://www.probertencyclopaedia.com/browse/HA.HTM

Argillite

An argillite t is a fine-grained sedimentary rock composed predominantly of indurated clay particles. Argillaceous rocks are basically lithified muds and oozes. They contain variable amounts of silt-sized particles. The argillites grade into shale when the fissile layering typical of shale is developed. Another name for poorly lithified argillites...
Found on http://en.wikipedia.org/wiki/Argillite

argillite

fine-grained sedimentary rock consisting mostly of hardened clay particles
Found on http://www.njwildlifetrails.org/OutontheTrails/GlossaryofNaturerelatedTerms

Argillite

A compact metamorphic rock composed mainly of clay or shale, and aluminum silicate minerals. Similar to slate in appearance and splitting properties, but usually much harder.
Found on http://www.selectstone.com/architectural-resources/stone-glossary/

Argillite

A compact sedimentary rock composed mainly of clay and aluminum silicate minerals.
Found on http://www.contractorschoolonline.com/Masonry-Glossary.aspx
No exact match found