390 Mineralogical Notices. 



w 



changes of temperature, as it does not expand at the same rate as 

 quartZj may cause the destruction of crystals of the latter. 



Bmdantite of Levy, — Mr- H. J. BkooKE states (Phil. Mag., 

 [4], ii, 21, July, 1851,) that on showing a crystal of the Beudan- 

 tite of Levy to M. Descloiseaux, he acknowledged that it differed 

 entirely from the mineral examined by himself and M. Damour 

 as BeudantitCj as well as every other specimen under that name 

 which he had seen. 



Emerylite on the Diaspore of KatJiarhieiiherg. — Mr. Thomas 

 F. Skal of Philadelphia states in a letter to one of the editors of 

 this Journal that he has just received a spechnen of the diaspore 

 of Katherineuberg and finds it also quite a good specimen of 



emeri 



A^almatolite. 



Fun 



xviii, 455. 



>/ 



U 



> 



stone by the Chinese, from its softness. It is often reduced to 

 powder and used in this state in making razor strops. It is found 

 in the Canton province. The reddish colored variety is more 

 common than the green. — Correspond, of S. W. Williams of i 



Canton. 



Karstenite. — The crystallization of Karstenite has been studied 

 by J. F. L. Hausmann, who points out its close conformity in its 

 angles with heavy spar and celestine^ and makes some general re- 

 marks on isomorphism or homosomorphism. — Soc. Sci. Gdtti7i- 

 gen^ March 15, 1850. 



Cinnabar. — A large deposit of cinnabar, yielding 80 p. c. on 

 analysis has been discovered in the island of Corsica. — /. de. 

 Pharm., March, 1851. 



Gold from California, (Phil. Mag., [4], 1, 261.)— Analyses of 

 three samples, after separating the oxyd of iron mixed with it. 



L Gold 93-53 Silver 6.4^ = 100. A. D. Tuomas. 



IL « 9306 « 6-94 = 100. F. Walters. 



III. « 96-42 « 3-58 = 100. A. D. Thomas. 



Gold of New Grenada. — The principal deposits of alliiFial 

 gold in New Grenada, are those of Sinitabe, Oqiiendo, Baharona, 

 San Juan, La Vaca and Rio Diilze. The best mines are twenty- 

 five or more in number, of which those of El Zancudo, Titiribe, 

 La Clara, Amalfi and Pedrero are worked. The amount exported 

 and made into coin for the year ending with August 31, 1848, 

 was 5-187 liv.— (Ann. des Mines, [4], xviii, 358.) 



On the origin of Ores of zinc, lead, iron and manganese in 

 irregular beds; by M. J. Delanoue. — Ann. des Mines, [4], 



ZEuscHNER.--(Ann. des Mines, [4], xviii, 125.) 



