Element Important in the Construction of Corals
This page is the CodyCross answer for the clue below from Treasure Island, Group 1027, Puzzle 1 (Long John Silver).
Question is: Element Important in the Construction of Corals
and the answer is: 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.