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FITCH-ORE. • ORDER XX.—URANIUM. ^ Tins Order contains three species, viz. Fitch ore, Urau-mica, and Uran-ochre, ]. Pitch-Ore. Peclierz, Werner. Id. Wern. Pahst. b. i. s. 170—Pech-Blendc, Wid. s. 987.—Sul phurated Uranite, Kim. vol. ii. p. 305-Pech-Blcnde, ou Blende de Poi*. De Born, t. ii. p. I .'if). Schwarz Uranerz Emm b. ii. s. 580.—Mine d'l banit sulphure, Lam. 1.1. p. 408. Uranc oxydule, llauy, t. iv. p.280—Le Pecherz, ou L’Urane noir, Broch. t. ii. p. 460 — Pecherz, Iteuss, b. iv. s. 551. 1 • Lud. b. i. s. S07 Uranpecherz, Suck. 2‘er t h. s. 466.-1 cch- erz, Bert. s. 511. Id. Mohs, b. iii. s. 716—Uran oxydule, Lucan, p. 176.—Pecherz, Leonhard, Tabel. s. 80—Uran oxy dule, Brong. t. ii. p..102. Id. Brard, p. 378—Pecherz, heir- sten, Tabel. s. 74—Uran oxydule, Hatty, labl. p. 113. Pech-Blendc, Kid, vol. ii. p. 220—Pecb-Uran, 1/aw. Handb. b. i. s. 325—Pitch-Blcndc, Aikin, p. 69. External Characters. Its colour is velvet-black, or dark greyish-black, which inclines to iron-black. It occurs massive, disseminated, small reniform, and small botryoidal. Internally it is shining, inclining to glistening, and the lustre is resinous. The