The most common and most likely answer to this crossword clue is the 7 letter word PERLITE which also is the latest solution we found used in Boston Globe in 1998.
Glassy rock crossword clue answers
Here's a list of possible crossword answers ranked by the most likely to least likely.
| Answer | Likelyness | Letters |
|---|---|---|
| PERLITE | 50 % | 7 |
| LAVA | 50 % | 4 |
Words with a meaning similar to the clue: Glassy rock
These words may or may not be a possible solution to this crosswords clue.- lava
- pitchstone
- obsidian
- magma
- fulgurite
- pearlite
- pearlstone
- beryl
- topaz
- olivine
- rope
- groundmass
Crossword Answer definitions
PERLITE noun- An amorphous volcanic glass formed by the hydration of obsidian.
- The lightweight insulating material and aggregate resulting from expanding perlite glass by heat.
More crossword clues leading to the same solutions
Here's a few more crossword clues - all leading to the identical solution