Stone Used by Mayans to Enhance Their Weapons
This page is the CodyCross answer for the clue below from Under the sea, Group 40, Puzzle 2.
Question is: Stone Used by Mayans to Enhance Their Weapons
and the answer is: OBSIDIAN
Word Meaning:
OBSIDIAN — (mineralogy) A type of naturally occurring black glass produced by volcanoes.
Definitions from Wiktionary.