Translucent Form of Gypsum, Usually Snow White
This page is the CodyCross answer for the clue below from Underground Worlds, Group 2173, Puzzle 4 (Turquoise and Moonstone).
Question is: Translucent Form of Gypsum, Usually Snow White
and the answer is: ALABASTER
Word Meaning:
ALABASTER — A fine-grained white or lightly-tinted variety of gypsum, used ornamentally.
Definitions from Wiktionary.