388 Miscellanies. 



* 



sembles in fracture scapolite with two passages which form an angle 

 of 94° 9' its hardness is 4.5 and its specific gravity 2.793 j it con- 

 sists of f Silica, - - - - 45.80 



Alumina, ... 35.45 



Its Formula, C^| j Lime, - - - - 10.15 



F [>S+3AS. } Magnesia, - 5.05 



MgJ J Protoxide of Iron, - - 1.70 



Moisture and Loss, - - 1.85 



There are a few more minerals described which seem to require 

 a thorough examination in order to establish their claim to be called 

 new, as for instance Skugisan and JMonophan belonging to the 

 family of the zeolites and noticed by Breithaupt. 



The Mengite from Siberia, and the Monticellite from Vesuvius 

 and noticed by Brooke and Berzelius from Galloro near Rome, a 

 kind of anhydrous zeolite which is difficult to fuse and becomes 

 gelatinous with muriatic acid ; it is noticed by Necker De Saussure. 



In regard to the Xanthite, described in a former number of this 

 Journal which occurs in Orange County, N. Y. which consists of 



Silica, - - - 



Lime, -------' 



Alumina, ------- 



Oxide of Iron, - - 



Protoxide of Manganese, - - - - 3.680 



32.708 

 36.308 

 12.280 



12.000 



Moisture, 

 Loss, 



0.600 



24.24 



Berzelius observes that if this analysis approaches to accuracy 

 and if a small part of the oxide of Iron is contained in the mineral 



as a protoxide the formula would be 2 <( Mg > S-{-p 2 S 



1 F l 



10. Ozokerite, a new combustible mineral. — This mineral occurs 

 at Slauik Moldavian District near the Karparthes and has been call- 

 ed by Glooker, Ozokerite (o£sh to smell, x^og wax,) it is of a talcose 

 structure, the color between green and brown, of the spec, grav., 

 0-955 to 0-970, it may be kneaded between the fingers, melts into 

 a clear mass in the flame of a candle, is soluble neither in alcohol nor 

 water, even when boiling, and but slowly so in ether and spirits of 

 turpentine. 



This mineral may serve as an excellent material for lamps or ta- 

 pers burning like wax with soft clear flame and diffusing on its being 



