CLASSIFICATION OF MINERALS. 



785 



Dcscloizite. 



Cu])r()descloizite. 



Eiisynchite. 



Declieiiite. 

 Calciovolborthite. 



Brackebuschite. 



Psittaoinite. 



Mottramite. 



Chileite. 



Vauadiolite. 

 Volbortbite. 



Group 3. 

 (rb,Zn;.(0H)V04 



(Cu,Ca):(OH)VO,. 



Group i. 



(Pb,Fe,Mn):,(V04),.H..O. 



Group 5. 



(Pb,Cu)^(OH):(VO^),.H,0. 



(Cu,Ca,Ba);,(0n):iV0,.6H:0. 



Ortborboiubic. 



Ortborbombic. 



Mouocliuic(?). 



(?) 



(?) 



OXYGEN SALTS: CLASS, — PHOSPHATES. 



The phosphates, derivatives of H:iP04, H4P2O7, and nPOs, include 

 the native oxidized compounds of phosi)horns, which are compounds 

 of oxides with phospliorus pentoxide. Tliese compounds are either 

 normal or basic salts, both hydrous and anhydrous. The phosphates 

 may crystallize with a fluoride, as in apatite, a combination of a phos- 

 phate and fluoride; with a cliloride, as in pyromorphite, a combination 

 of a phosphate and chloride, or with a hydroxyl, as in triploidite. 



