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EROWN HEMATITE. 261 Fourth Subspecies. Brown Hematite, or Fibrous Brown Ironstone. Brauner Glasskopf, Werner. Id. Werner, Pabst. b. i. s. l6l. Id. Wid. s. 817-—Brown He matite, Kiriv. vol. ii. p- 163.—Brauner Glaskopf, Emm. b. ii. s. 323.—Fer oxide Hematite brun, IIany, t. iv. p. 105— L’Hc- matite brun, Broch. t. ii. p. 261.—Fasrigcr Brauncisenstein, Reuss, b. iv. s. 98.—Brauner Glaskopf, Lud. b.i. s. 248. Id. Suck. 2 ter th. s. 273- Id. Bert. s. 411. Id. Mohs, b.iii. s. 400. Fasrigcr Brauncisenstein, Hah. s. 120.—Fer oxide brun fibrcux, Brong. t. ii. p. 168—Fasriger Brauneisenstein, Aar- sten, Tabel. s. 66. Id. Haus. s. 107—Brown hematitic Iron- ore, Kid, vol. ii. p. 176—Fer oxide hematite, & Fer oxide noire vitreux, Hamj, Tabl. p. 98—Brown Hematite, Atkin, p. 40. External Characters. The surface of the fresh fracture is clove-brown, which hi some varieties passes into steel-grey ; in others into blackish-brown, and,brownish-black; in others into light yellowish-brown and ochre-yellow. Idie external sur face is tarnished velvet-black and bluish-black; sometimes also steel-grey, pinchbeck-brown, pavonine, and iride scent. It seldom occurs massive, more frequently stalactitic, coralloidal, reniform, botryoidal, tuberose; sometimes also cylindrical, fructicose, dendritic, large and small cel- h'lar, in supposititious six-sided pyramids; and in the fol lowing true crystals: 1. Rectangular four-sided prism, which is sometimes so short as to appear like a cube. j> q 2. Preceding