( 449 ) XIII. MICA FAMILY. This Family contains the following species: Lepido- lite, Mica, Finite, and Chlorite. 1. Lepidolite. Lepidolith, Werner. ' Lepidolitli, JVid. s. 378. Id. Kiriv. vol. i. p. 208. Id. Emni. b. iii. s. 324. Id. F.slner, b. ii. s. 2S8. Id. Nap. p. lG7. Id. Lam. t. ii. p. 315. Id. Brock, t. i. p. 399- Id. Hatty, t. iv. p. 375. Id. Rems, b. ii. s. 402. Id. Lud. b. i. s. 114. Id. Suck, lr th. s. 397- hi Bert. s. 17- Id. Mohs, b. i. 465. Id. Hab. s. 40. Id. Lucas, p. lfjfj. Id. Leonhard, Tabcl. s. 23. Id. Brong. t. i. p. 506. Id. Brard, p. 411. Id. Ilaus. s. 91. Id. Karst. Tabel. s. 30. Id. Kid, vol. ii. p. 246. Id. Ilauy. Tab. p. 64. Id. Steffens, b. i. s. 213. Id. Lenz, b. ii. s. 582. id. Oken, b. i. s. 390. External Characters. Its colour is peach-blossom-red, inclining sometimes to flesh-red, sometimes to lilac-blue; it also passes into pearl-grey and yellowish-grey. It occurs massive, and crystallised in equiangular six- sided prisms. Internally its lustre is shining, and semi-metallic, in dining to pearly. The fracture in the large is coarse splintery; in the small, fine foliated. The fragments are blunt-angular. It occurs in small and fine granular distinct concre tions. , ' v ' VoL - I. F f It