10 PHYSIOGRAPHY. 



Leucopyrite Levyne. 



2. Analysis. 



By SHEPARD. 



From Bedford co. (Penn.) 



Iron 97-44 



Arsenic 1*56 



3. It is found in beds, either along with Spathic Iron and Limonite, or 

 imbedded in serpentine. With the first, it occurs in the valley of Loling, 

 near Huttenberg in Carinthia ; in serpentine, at Reichenstein in Silesia. 

 It has likewise been met with in beds in primitive mountains, with Cop- 

 per-Nickel and Smaltine, at Schladming in Stiria. 



It has been found in the U. States at two localities, but under what 

 circumstances, it is not known : one of them is in Bedford co. (Penn.) 

 from whence a crystal weighing two or three ounces, was brought; and 

 the other, in Randolph co. (N. Carolina) where a mass, weighing nearly 

 two pounds, was obtained. 



LEVYNE. Macrotypous Kouphone-Spar. 

 PARTS CH. 



Primary form. Rhomboid. P on P=79 29'. 



Cleavage, indistinct parallel to P. Fracture, imperfectly 

 conchoidal. 



Lustre vitreous. Color white. Streak white. Semi- 

 transparent. 



Brittle. Hardness =4-0. Sp. gr. =2*198. 



Compound Varieties. Composition parallel to o. 



Fig. 278. 



o one- - - - 136 l'> T 

 oonP 11729 $ LEVY - 



Surface o uneven, and generally curved. 



1. In the glass tube, when heated, it gives off a considerable quantity 

 of water, and becomes opake. Upon charcoal, it intumesces slightly. 



