Precious Violet Quartz Used in Jewelry
This page is the CodyCross answer for the clue below from Science Lab, Group 311, Puzzle 4 (Empirical Formula).
Question is: Precious Violet Quartz Used in Jewelry
and the answer is: AMETHYST
Word Meaning:
AMETHYST — A transparent purple to violet variety of quartz with traces of manganese, used as a gemstone.
Definitions from Wiktionary.