FLINTY a.
Consisting of, composed of, abounding in, or resembling, flint; as, a flinty rock; flinty ground; a flinty heart. Flinty rockFlinty state, a siliceous slate; -- basanite is here included. See Basanite.
SPLINTER v. 5 definitions
To split or rend into long, thin pieces; to shiver; as, the lightning splinters a tree. After splintering their lances, they wheeled about, and . . . abandoned the field to the enemy. Prescott.