Sedimentary Rock Used to Make Concrete
This page is the CodyCross answer for the clue below from Fantasy World , Group 866, Puzzle 5 (Mischievous Pixie).
Question is: Sedimentary Rock Used to Make Concrete
and the answer is: LIMESTONE
Word Meaning:
LIMESTONE — An abundant rock of marine and freshwater sediments; primarily composed of calcite (CaCO₃); and occurring in a variety of forms, both crystalline and amorphous.
Definitions from Wiktionary.