PHYSIOGRAPHY. 267 



Websterite White Antimony. 



Color white. Streak white, a little glimmering. It soils. 

 Opake. 



Sp. gr.= l-669. 



1. It is fusible with difficulty. It is readily soluble in the acids. It 

 imbibes water, but does not in consequence, fall to pieces. 



2. Analysis. 

 By STROMEYER. By DUMAS. 



fr. Halle. fr. Newhaven. fr. AuteuiL 



Alumina 30-262 29863 - - 30-0 



Sulphuric acid 23-365 23-270 - - 23-0 



Water 46-327 46-762 - - 47-0 



3. It is found at Halle in Prussia, in beds of plastic clay, and also fill- 

 ing up fissures in chalk, and in small globular masses, at Newhaven 

 in Sussex, and at Auteuil near Paris. 



WEISSITE. 



Primary form. Oblique rhombic prism. 

 Lustre pearly. Color ash-grey. Translucent. 

 Hardness, scratches glass. 



1. Analysis. 



By WACHMEISTER. 



Silica 53-69 



Alumina 21-70 



Magnesia 8-99 



Protoxide of iron 1-43 



Protoxide of manganese 0-63 



Potash 4-1X) 



Soda 0-68 



Oxide of zinc 0-30 



Water 3-20 



2. It is found with a chloritic Talc in Erik-Matts, at Fahlun in Swe- 

 den. 



WERNERITE. (See Scapolite.) 



WHITE ANTIMONY. Prismatic Antimony- 



Baryte. MOHS. 

 Primary form. Right rhombic prism. M on M = 136 



58'. 



