PHYSIOGRAPHY. 



Mullerite Muriatic Acid. 



55 



Secondary form. 



Fig. 313. 



P on M or/ - - 90 OCX 



Mon/ - - 142 30 



Mon^ - - 127 30 



a on f - - 161 30 



c on h - - 126 55 



c on a - - 123 30 



Imbedded crystalline laminae. Traces of cleavage. Frac- 

 ture uneven. 



Lustre metallic. Color silver-white, merely inclining to 

 brass-yellow. Opake. 



Rather brittle. Soft. Sp. gr. = 10-678. MULLER. 



1. Before the blow-pipe, it melts into a metallic globule, and emits a 

 pungent odor. It is soluble in nitric acid. 

 2. Analysis. 

 By KL.APROTH. 



Tellurium 44-75 



Gold 26-75 



Lead ... . . 19-50 



Silver 8-50 



Sulphur 0-50 



3. It has been found only at Nagyag in Transylvania, where it at- 

 tends Graphic Gold and Manganblende. 



MURCHISONITE. (See Feldspar.) 



MURIACITE. (See Anhydrite.) 



MURIATE OF AMMONIA. (See Sal- Ammoniac.) 



MURIATE OF COPPER. (See Atacamite.) 



MURIATE OF MERCURY. (See Horn Quicksilver.) 



MURIATE OF SILVER. (See Horn Silver.) 



MURIATE OF SODA. (See Common Salt.) 



MURIATIC ACID. Muriatic-Acid Gas. MOHS. 

 Gaseous. Transparent, when unmixed with atmospheric- 

 air. 



