Marble-like substance (5)
I believe the answer is:
agate
(Other definitions for agate that I've seen before include "Type of quartz" , "Hard stone with concentric bands of colour" , "On the way" , "Old drama critic" , "Variegated chalcedony" .)
I believe the answer is:
agate
(Other definitions for agate that I've seen before include "Type of quartz" , "Hard stone with concentric bands of colour" , "On the way" , "Old drama critic" , "Variegated chalcedony" .)