583 CLAY GENUS. TWENTY-FIRST SPECIES. < ‘ ; '• Lepidolite. - - r Lepidolith.—Werner. Id. Wid. p. 378. Id. Kirw. vol. 1. p. 208. Id Emm. b. 3- I. 324. IdEjitier, b. 2. f. Id Nap. p. 167. Lam. t. 2- p. 315. Broch. t. 1. p. 399. External Characters. Its colour is a kind of peach-bloffom red that verges on lilac blue ; it alfo paffes into pearl grey and yellowifh grey. The yellowifh grey colour is however probably only accidental, and owing to the lofs of the colouring matter. Occurs maffive. Internally its luftre is gliftening, palling into fhin- ing. Fra&ure in the fmall foliated, in the great fplintery- Fragments indeterminately angular, blunt edged. Occurs in fmall and fine grained diftinft concre tions. Tranflucent. Mild.