Calcite, Quartz, Talc, Zircon, for Example
This page is the CodyCross answer for the clue below from Top Secret, Group 2090, Puzzle 3 (Mission Timer).
Question is: Calcite, Quartz, Talc, Zircon, for Example
and the answer is: MINERAL
Word Meaning:
MINERAL — (geology) Any naturally occurring material that has a (more or less) definite chemical composition and characteristic physical properties; especially, an inorganic one.
Definitions from Wiktionary.