CLASSIFICATION OF MINERALS. 



763 



Sassolite. 

 Gihbsite. 



Zirlite. 



Namaqiialitc. 



Diasjtore. 



Manganite. 



Gcithitc. 



Onegite. 



Bauxite. 



Wdcheiuite. 

 Xauthosiderite. 

 SViuklerite. 



Tiirgite. 



Linionite. 

 Heubachite. 



Tleteiogenitf 



Opal. 



Lnssatite. 



Forcherite. 



Fiorite. 



Geyserite. 



Tripolite. 



Group 2. 



B(0H)3. 

 A1(0H)3. 



(iroiq) 3. 



AIO(OH).' 

 MnO(OH). 

 FeO(OH). 



Group 4. 

 A1,0(0H)4. 



Fe,0(0H)4. 



(Co,Ni).0(OH)4. 



Grout) 5. 

 Fe405(OH)2. 



Group 6. 



Fe40,(0H)fi. 



(Co,Ni)^0.(OH)o 



Groxip 7. 

 SiO>(H.20)„. 



Triolinic. 

 Moiiocliuic. 



Orthorliouibic. 

 Ortboilioiiibic. 

 Orthorhoniliic. 



(?) 



(f) 

 (?) 



Amorphous, 



OXYGEN SALT.s: CLASS, — BOliATES, ALUMINATES, CIIROMITES, FERRITES, MANGANITES, 



AND PLUMBATES. 



The minerals here included may be regarded as derivatives of HBO2, 

 H2BO3, H^B.O,, HAIO,, HCrO,, HFeO,, HMn02, HMnO,, and HPb(>,, 

 or as compounds of other oxides with the trioxides of boron, aluminum, 

 chromium, iron, manganese, and lead, forming respectively borates, 

 aluminates, chromites, ferrites, manganites, and plumbates. 



