Noah Webster
Buhrstone
BUHR'STONE, noun A subspecies of silex or quartz, occurring in amorphous masses, partly compact, but containing many irregular cavities. It is used for mill-stones.
This word is often written burr-stone.
BUHR'STONE, noun A subspecies of silex or quartz, occurring in amorphous masses, partly compact, but containing many irregular cavities. It is used for mill-stones.
This word is often written burr-stone.