An example of argillaceous rock is? by Sunday | Jan 15 | Geography WAEC | 0 comments A. chalk B. shale C. graphite D. coat Correct Answer: Option A A. chalk Users Also Read These:Marble is a metamorphic rock formed from?An example of mechanically formed sedimentary rock is?An example of a crystalline rock is?An example of igneous rock is?An example of a calcareous rock is?