'Schorl' definitions:

Definition of 'schorl'

(from WordNet)
noun
Black tourmaline

Definition of 'Schorl'

From: GCIDE
  • Schorl \Schorl\ (sh[^o]rl), n. [G. sch["o]rl; cf. Sw. sk["o]rl.] (Min.) Black tourmaline. [Written also shorl.] [1913 Webster]