252 



PHYSIOGRAPHY. 



Turquoise Uranite. 



2. It is found at Mt. Sorel in Dauphiny, attended by Quartz, Feldspar, 

 Albite, Crichtonite and Anatase. 



TURQUOISE. Uncleavable Azure-Spar. 

 Massive: composition impalpable. Fracture conchoidaL 

 Color blue . . . green, rather bright. Streak uncolored. 



Feebly translucent on the edges . . . opake. 



Hardness = 6-0. Sp. gr. =2-83 . . . 3-00. FISCHER. 



1. It is not dissolved by muriatic acid. Before the blow-pipe, it be- 

 comes brown in the reducing'flame, and gives a green color to it. It is 

 infusible by itself, but melts easily with borax or salt of phosphorus. 



2. According to B.ERZEL.IUS, it consists of phosphate of alumina and 

 lime, silica, oxide of iron and copper, and a little water. 



3. It is found in Persia, either in pebbles, or in small veins, traver- 

 sing a kind of trap. 



4. Cut and polished, it is used for different ornamental purposes. 



URANITE. Pyramidal Eu ch lore-Mica. 

 MOMS. 



Primary form. Right square prism. 

 Secondary forms. 



Fig. 456. Fig. 457. 



Fig. 458. 



Cornwall. 



Cornwall. 



Cornwall. 

 Fig. 459. 



