Volcanic Rock Formed by Cooled Lava
This page is the CodyCross answer for the clue below from Greece, Group 670, Puzzle 5 (Small Tavernas).
Question
Volcanic Rock Formed by Cooled Lava
Answer
BASALT
Word Meaning:
BASALT — (mineralogy) A hard mafic igneous rock of varied mineral content; volcanic in origin, which makes up much of the Earth's oceanic crust.
Definitions from Wiktionary.