Enter a clue or pattern or both:
The Clue
Volcanic rock (6 letter answer)
The Answer
BASALT
Tags
Notes
The answer BASALT is seen occasionally, appearing about once every 900 puzzles.
Related Clues
Black rock
A common lava
Igneous rock
Some moonrocks
Fine-grained rock
Rosetta stone composition
Wedgwood's black ware
Definition
BASALT as a noun:
1. the commonest type of solidified lava; a dense dark grey fine-grained igneous rock that is composed chiefly of plagioclase feldspar and pyroxene