1826.] affecting Chemico- Miner alogical St/stems, 431 



• • • > ■ • 



S. Earthy carb. zinc Zn Aq« + 3 Zn C- 



Carbonate of cerium Ce C* 



Carbonate of lead Pb C* 



Carbonate of copper. 



a. Malachite Cu C- + Aq 



b. Blue carb. cop Cu Aq» + 2 Cu C^ 



c. Siliceous carb. cop 



Humboldtine (oxalate of iron) ? Fe O* 



Aisenious acid <... As 



jlrseniales. 



Pharmacolite. Ca As + 6 Aq 



Picropharmacolite _ V- ^^4 ^ 30^^ 



Arseniate of iron. 



a. Scorodite. 



b. Cubic arseniate of iron fes As" + 2 Fe* As'^ + 36 Aq 



c. Fer resinite. 



Arseniate of cobalt. 



a. Subarseniate. 



b. Subarsenite. 



Arseniate of nickel. 



a. Subarseniate, from Allemont Ni3 As' + 18 Aq 



5. Subarseniate Ni' As + 18 Aq 



Arseniate of lead Pb As 



Arseniate of copper, and its varieties which 

 have been but slightly examined. 



Phosphoric acid. 



Phosphates. 



Apatite Cas P» 



"VVagnerite Ms P* 



Phosphate of yttria Y^ P» 



Phosphate of iron, 



a. from Cornwall Fe* Ps + 1 6 ^Vq 



A. from Bodenmais Fe' P* + 1 2 Aq 



Phosphate efraanganeijc l\In P + Fc" P 



