Min. Obs. [ad. G. klingstein.] = CLINKSTONE.
1800. Henry, Epit. Chem. (1808), 364. Soda [has been found] in basalt; in pitch-stone; and in kling-stone.
1811. Pinkerton, Petral., I. 175. The klingstone employed in the preceding experiments was from the Donnersberg.