The Mineral That Is Important for Building Bones
This page is the CodyCross answer for the clue below from Top Secret, Group 2085, Puzzle 2 (Mission Briefing).
Question
The Mineral That Is Important for Building Bones
Answer
CALCIUM
Word Meaning:
CALCIUM — The chemical element with atomic number 20: a soft, silvery-white alkaline earth metal which occurs naturally as carbonate in limestone and as silicate in many rocks.
Definitions from Wiktionary.