hearthstone

English Thesaurus

1. a stone that forms a hearth (noun.artifact)

hypernym	:	stone,
definition	:	building material consisting of a piece of rock hewn in a definite shape for a special purpose (noun.artifact)

part meronym	:	fireplace, hearth, open fireplace,
definition	:	an open recess in a wall at the base of a chimney where a fire can be built (noun.artifact)