Late 18th century; earliest use found in Richard Kirwan (1733–1812), chemist and mineralogist. After French schorl rouge (J. B. L. de Romé de l'IsleCristallographie (ed. 2, 1783) II. 422).
Definition of red schorl in US English:
red schorl
noun
historical
Rutile; (occasionally also) = red tourmaline.
Origin
Late 18th century; earliest use found in Richard Kirwan (1733–1812), chemist and mineralogist. After French schorl rouge (J. B. L. de Romé de l'Isle Cristallographie (ed. 2, 1783) II. 422).