58 PHYSIOGRAPHY. 



Native Amalgam. 



3. It is found in the peninsula of Hindostan, near the eastern frontier 

 of Mysore. It forms beds in the older rocks. 



4. It has been observed that the Malachites, on being subjected to 

 calcination, afford a substance analogous to the Mysorine. 



NACRITE. (See Talc.) 

 NAPHTHA. (See Bitumen.) 

 NAPHTHALINE. 



Crystallized in irregular, undetermined octahedra. 

 Cleavage, in more than one direction. Fracture conchoidal. 

 Lustre adamantine to resinous. Color white, green or yellow. 

 Transparent. 



Brittle. Rather heavier than water. 



1. Fuses at low temperatures, and crystallizes on cooling. It readily 

 burns with a bright flame and much smoke. 



2. It is found in the fissures and fractures of bituminous wood, which 

 it sometimes traverses, and into which it seems to have been introduced 

 by sublimation. The layer of lignite belongs to a very recent forma- 

 tion, containing fossil vegetables, analogous to those now existing. 



0. Jt is found in the coal formation of Uznach. 



NAPOLITE. (See Sodalite.) 



NATIVE AMALGAM. Argento- Mercury M e- 

 lacone Metal. 



Primary form. Rhombic dodecahedron. 

 Secondary forms. 

 1. Fig. 315. 2. ,Fig. 316. 



