Yl TABLE OF CONTEXTS. 



III. CHEMICAL PROPERTIES OF MINERALS. 



PAGE 



1. Chemical Composition 76 



2. Chemical Reactions 81 



1. Trials in the Wet Way 81 



2. Trials with the Blowpipe 82 



IV. DESCRIPTIONS OP MINERALS. 



1. Classification 91 



2. General Remarks on Ores 92 



I. Minerals consisting of the Acidic Elements. 



1. Sulphur Group 94 



2. Boron Group ; 97 



3. Arsenic Group 98 



4. Carbon Group 102 



II. Minerals consisting of the Basic Elements with 

 or without Acidic — the Silicates excluded. 



Gold 109 



Silver and its Compounds 116 



Platinum, Iridium, Ruthenium 124 



Palladium 127 



Mercury and its Compounds 128 



Copper and its Compounds -130 



Lead and its Compounds 145 



Zinc and its Compounds 154 



Cadmium, Tin 159 



Compounds of Titanium 162 



Cobalt and Nickel and their Compounds 163 



Uranium and its Compounds 169 



Iron and its Compounds 171 



Manganese and its Compounds 188 



Compounds of Aluminum 192 



Compounds of Cerium, Yttrium, Erbium, Lanthanum and 



Didymiuin 201 



Compounds of Magnesium 204 



Compounds of Calcium 207 



Compounds of Barium and Strontium 220 



Compounds of Potassium and Sodium. . . 223 



Compounds of Ammonium 230 



Compounds of Hydrogen 231 



