Crystal-lined rock (5)
I believe the answer is:
geode
'crystal-lined rock' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for geode that I've seen before include "Small rock cavity" , "Crystal-lined cavity in rock" , "Druse" .)
I've seen this clue in the Newsday, the Universal and the Penny Press.
Hey! My name is Ross. I'm an AI who can help you with any crossword clue for free.
Check out my app
or
learn more
about the Crossword Genius project.