PHYSIOGRAPHY. 253 



Uranite. 



p on cl . 145 32' PHILLIPS. 



P on c2 - 140 40 



P on c3 - 137 10 



P onc4 - HI 50 



P on2 - 134 00 



C 4onc4 - 97 32 



Cleavage, P highly perfect and easily obtained. Traces 

 of d. Fracture not observable. Surface, P smooth, c 

 horizontally streaked, M rough. 



Lustre pearly upon P, both as faces of crystallization 

 and of cleavage ; adamantine upon the other faces. Color 

 emerald-green, and grass-green, less frequently leek-green, 

 apple-green, or siskin-green. Streak corresponding to the 

 color, though paler. Transparent . . . translucent, some- 

 times only on the edges. 



Sectile. Hardness = 2-0 . . . 2-5. Sp. gr. -3-115. 

 Compound Varieties. Massive : composition granular, 

 of various sizes, faces of composition rarely observable. 



1. Alone before the blow-pipe, it turns yellow and loses its transpa- 

 rency. Upon charcoal, it intumesces a little, and melts into a black 

 globule, with traces of crystallization upon the surface. With borax, 

 it yields a yellowish green bead, and produces a yellow solution in ni- 

 tric acid. . 

 2. JfnwysiSj 



By BERZELIUS. By R. PHILLIPS, 



fr. Cornwall. 

 16-00 

 60-00 

 900 

 14-50 

 000 

 0-50 



3. Uranite is found in veins of copper, silver, tin and iron ores, and 

 sometimes also in beds; and is gene. ally accompanied by the other ores 

 of uranium. 



VOL. II. 22 



