Min. [Named by G. A. Koenig, 1878, in honor of Dr. Joseph Leidy: see -ITE.] A complicated hydrous silicate found in fine yellowish-green scales.
1878. in Proc. Acad. Nat. Sci. Philad., 84.
1882. Dana, Min., App. 68. Leidyite … consisting of fine scales with silky lustre.
