Answer | Crossword Clue |
---|---|
phonolite | a fine-grained intermediate igneous rock that rings when struck by a hammer, aka clinkstone |
clinkstones | CLINKSTONE, a fine-grained intermediate igneous rock, aka phonolite, that rings when struck by a hammer |
phonolites | PHONOLITE, a fine-grained intermediate igneous rock that rings when struck by a hammer, aka clinkstone |
clinkstone | a fine-grained intermediate igneous rock, aka phonolite, that rings when struck by a hammer |