After the town of Tyndall, Manitoba, where the stone is quarried, in turn named after Irish physicist John Tyndall (1820–93). Tyndall, Tindall (“inhabitant of the Tyne river valley”) < Tyne.
Tyndall stone (usually uncountable, plural Tyndall stones)
- (Canada) A dolomitic limestone quarried in the vicinity of Tyndall, Manitoba, Canada, famous for its pervasive mottling and numerous fossils.
- 1994: Carol Shields, The Stone Diaries, p 64, Toronto: Penguin. →ISBN.
- More and more my father chooses to decorate the stone surfaces with elaborate cipher, even though Tyndall stone, with its mottled coloring, is thought to be resistant to fine carving.