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TUNGST-EI*. 545 ORDER XIX.—TUNGSTEN, on SCHEELIUM *. This Order contains two species, viz. Tungsten, and Wolfram. 1 1. Tungsten. Schwerstein, Werner. Miner* Ferri lapidea gravissima, 'Wall t. ii. p. 254.—Wolfram de couleur blanche, Rome de L. t. iii. p. 264—Schwerstein, Werner, Pabst. b. i. s. 222—Weisser Tungsten, Wid. s. 980. —Tungsten, Kirw. vol. ii. p- 314—Tungstate calcaire, Mine d'Etaine blanche, De Born, t. ii. p. 230—Schwerstein, Emm. b. ii. s. 570—Tungstene, I.am. t. i. p. 402—Scheelen calcaire; Dauy, t. iv. p. 320.—La Pierre pesant, ou le Tungstene, Brock, t. ii. p. 453—Scheelerz, Retiss, b. iv. s. 534 Id. Liid. b. i. s. 303—Kalk-Scheel, Suck. th. s. 459— Schwerstein, Bert. a. 509. Id. Mohs, b. iii. s. 623—Scheelin calcaire, Lucas, p. 183.—Scheelerz, Leonhard, Tabel. s. 81. Scheelin calcaire, Brong. t. ii. p. 93. Id. Brard, p. 389.—Scheelerz, Karsten, Tabel. s. 74— Scheelin calcaire, IIany, Tabl. p.T18. —Tungsten, Kid, vol. ii. p. 225. Id. Aikin, p. 65. External Characters. Its colours are usually yellowish and greyish-white, which sometimes verge on snow white; from these it Vor.. III. Mm passes " Werner gave the name Schcete to this genus, in honour of the illus trious chemist Scheele, who discovered the peculiar metal tvhich eharacte- r ' s *s it. »