Volltext Seite (XML)
COMMON ARSENICAL-PARITES. 527 First Subspecies. Common Arsenical Pyrites. Gemeiner Arsenikkies, Werner. Id. Wern. Pabst. b. i. s. 212. «■ JV ‘< L s • » G8 —Arsenical Py rites, or Marcasite, Kim. vol. ii. p. 256—Gemeiner Arsenik kies, Emm. b. ii. s. 553—La Pyrite arsenicule commune, Brock, t. ii. p. 438—Per arsenical, Hamj, t. iv. p. 57—Ge meiner Arsenikkies, Rems, b.iv. s. 505. Id. End. b. i. s. 298. Id Suck 2 ter tli. s. 416. Id. Bert. s. 501. Id. Mobs, b. iii. s S14—Fer arsenical, Lucas, p. 138. Id. Brard, p. 314— Gemeiner Arsenikkies, Leonhard, Tabel. s. 78. Id. Karsten, Tabel. s. 74. Id- Uaus. s. 73—Per arsenical, Uauij, Tabl. p. 95—Arsenic alloyed with Iron, Kid, vol.ii. p. 203—Mis- pickel, Aiktn, p. 63. External Characters. On'the fresh fracture it is silver white, hut by expo sure it acquires a yellowish ta nisli; sometimes it has a pavonine, columbine, or iridescent tarnish, in its natural repository. It occurs massive, disseminated, often also crystallised in the following figures: 1. Oblique four sided prism, with lateral edges of \12° 87 11". and 67° 22' 49", and in which the lateral faces are either perfect •, or bevelled ei ther * l f er arscnicul primitif. Hauy. According to Ilany, the primitive form of this species is so oblique four-sided prism, with lateral edges of 111° 18, and ih« 42 ; whereas Hcrnarili considers it as a cube.—Vid. Annal. du Mus. t. xii. p. 306.; and ' iehlen’a Journal, t. iii. p. 8. The above measure ment is thut of Hausinann.