Below you can find the The most abundant sedimentary rock is this layered variety made of silt & clay Jeopardy Words Answer. The answer to The most abundant sedimentary rock is this layered variety made of silt & clay has 5 letters. This clue belongs to the Rocks & minerals category and is part of Jeopardy Word Level 777. If you scroll near the bottom you will find other clues and answers part of level 777