Sedimentary Rock Made of Calcium Carbonate
This page is the CodyCross answer for the clue below from World of Books, Group 292, Puzzle 2 (Academic Publishing).
Question is: Sedimentary Rock Made of Calcium Carbonate
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.