(n.) Argillaceous schist or slate; clay slate. Its colors is bluish or blackish gray, sometimes greenish gray, brownish red, etc.
Webster's Revised Unabridged Dictionary
| APA | Webster's. (2011). argillite. Retrieved September 23, 2026, from http://smartdefine.org/argillite/definitions/1975730 |
| Chicago | Webster's. 2011. "argillite" http://smartdefine.org/argillite/definitions/1975730 (accessed September 23, 2026). |
| Harvard | Webster's 2011, argillite, Smart Define, viewed 23 September, 2026, <http://smartdefine.org/argillite/definitions/1975730>. |
| MLA | Webster's. "argillite" 27 May 2011. Web. 23 September 2026. <http://smartdefine.org/argillite/definitions/1975730> |