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446' TIN. when triturated; from garnet by its resino-adamantine lustre, and higher specific gravity; and from shorl by colour, form, lustre, and higher specific gravity. 2. Its name is derived from the great proportion of tin it contains, and its unmetallic-like aspect. 3. Wood-Tin, or Cornish Tin-Ore. Kornisch Zinnerz, Werner. Mine d Etain mamelonne, ou en Stalactites, JRomS de L. t. in- p. 428—Kornisch Zinnerz, Werner, Pabst. b. i. s. 183. Id. Wid. s. 877.—Wood Tin-ore, Kirn). vol. ii. p. 198.—Etain li- moneux, De Born, t. ii. p. 248.—Kornisch Zinnerz, Emm- b. ii. s. 427-—Mine d'Etain ferrugineux, Lam. t. i. p. 281.— Etain oxide concretionne, Hauy, t. iv. p. 147. La Mine d’Etain grenue, ou l’Etain grenu, Brock, t. ii. p. 340 IIolz- zinnerz, Iteuss, b. iv. s. 300. Id. Lud. b. i. s. 269. Id- Suck. 2 ter th. s. 358.—Cornisch Zinnerz, Bert. s. 443. Id- Moks, b. iii. s. 593.—Etain oxyde concretionne, Lucas, p. 150- —Holzzinnerz, Leonhard, Tabel. s. 75 Etain oxide concre- tionne, Brong. t. ii. p. 190. Id. Brard, p. 336 Holzzinnerz- Karsten, Tabel. s. 70—Fasriger Zinnstein, IIa us. s. 110.-" Etain oxide concretionne, Hauy, Tabl. p. 102. W’ood-tub Aikin, p. 52. External Characters. Its most common colour is hair-brown, of different de grees of intensity, which passes into wood-brown, yd' lowish-grey, and sometimes into reddish-brown. In single pieces it is occasionally striped in a concentric manner. It occurs in rolled pieces, which are generally wedge- shaped, also reniform, botryoidal, and globular. Externally