Volltext Seite (XML)
228 IRON, Second Subspecies. Iron-Sand or Arenaceous Magnetic Ironstone. Eisensand, Werner. Id. Werner, Pabst. b. i. s. 147. Id. Wid. s. 790—Magnetic' Sand, Ktrtv. vol. ii. p. lgj.—Eisensand, Emm. b. ii. s. 284. —Le Fer magnetique sablonneux, Br'och. t. ii. p. 241. Sandiger Magneteisenstein, Reuss, b. iv. s. 48—Eisensand, Lud. b. i. s. 241. Id. Suck. 2tcr th. s. 252. Id. Bert. s. 402- Id. Mohs, b. iii. s, 363.—Magnetischer Eisensand, Hah. s. 144—Sandiger Magneteisenstein, Leonhard, Tabel. s. 64. —Fer oxydule sablonneux, Brong. t. ii. p. 157.—Fer oxydule arenace, Brard, p. 311.—Sandiger Magneteisenstein, Karslen, Tabel. s. 64.—Korniger Magneteisenstein, I la us. s. 105.— —Fer oxydule titanifere, Ilauy, Tab!, p. 94 Sandy Magne tic Iron-ore, Ai/cin, p. 37. t External Characters. Its colour is very dark iron-black. It occurs in grains, which are sometimes angular, some times roundish ; and also in octahedral crystals. The grains and crystals are small and very small. The grains have a feeble glimmering, and rough sur face. Internally it is intermediate between shining and splen dent, and the lustre is metallic. The fracture is perfect conchoidal, and very rarely im perfect foliated. The fragments are indeterminate angular, and sharp- edged. It