Is “Fireclay” a Scrabble word?
Yes
FIRECLAY
Valid in at least one Scrabble dictionary
Valid in these dictionaries
SOWPODS / CSW
Scrabble UK & International
TWL / NWL
Scrabble North America
Large English Dictionary
General English word list
Meaning of Fireclay
noun
1.A type of clay that is able to withstand intense heat; used to make firebricks, crucibles, and other ceramics