CATALOGUE OF MINERALS. 1 1 



System of 

 No. Name. Formula. 



crystallization. 



205. Sulphuric Acid * S S 



206. Wolframine * W 1 



207. Molybdine* Mo 3 



3. Oxygen Compounds of Carbon, Boron and Silicon. 



208. Carbonic Acid * 



209. Sassolin BEE 3 5 



210. Quartz* Si 6 



210 a . Jasper* 

 210 b . Agate* 

 210. Chalcedony* 



211. Opal* Si 



211 a . Precious opal 

 211 h . Semi-opal * 

 211 C . Hyalite* 

 211 d . Geyserite 



II. OXYGEN DOUBLE BINARY COMPOUNDS. 



1. Silicates. 



A. ANHYDROUS SILICATES. 

 1. Edelforsite Section. 



212. Edelforsite CaSi 



2. Augite Section. 



213. Wollastonite * Ca 3 Si 2 4 



214. Pyroxene 3 Si 2 4 



214*. Diopside* (Ca,Mg) 3 Si 2 



214*. Hedenbergite * (Ca,Fe)&quot; Si 2 



214&quot;. Augite * (Oa, Mg, e) 3 Si 2 



215. Pelicanite 



