Noah Webster
Hornstone
HORN'STONE, noun A siliceous stone, a subspecies of quartz. It is divided by Jameson into splintery, conchoidal, and wood-stone. [See Chert.]
HORN'STONE, noun A siliceous stone, a subspecies of quartz. It is divided by Jameson into splintery, conchoidal, and wood-stone. [See Chert.]