Rock Type Formed From Hardened Volcanic Lava
This page is the CodyCross answer for the clue below from Campsite Adventures, Group 823, Puzzle 2 (Long Road Trip).
Question is: Rock Type Formed From Hardened Volcanic Lava
and the answer is: IGNEOUS
Word Meaning:
IGNEOUS — Pertaining to or having the nature of fire; containing fire; resembling fire.
Definitions from Wiktionary.