ORES AND VEIN MATERIALS. 



599 



REMARKS ON TABLE VII. 



In coimection with the serpeiitiue of Analysis I, it was found bj- treatment of 

 the powdered rocli with very dihite hydrochloric acid that the carbon dioxide was 

 eoaibined entirely with lime. That the rock is a true serpentine appears from a cal- 

 culation of the oxygen ratios. 



Analysis II, after deducting calcium carbonate, shows the residue to have a com- 

 position approximating to that of serpentine. 



The mineral of which III is the analysis was obtained in an apparently pure state 

 by treatment with dilute hydrochloric acid, whereby 16J^ per cent, of the whole went 

 into solution and was found to consist chiefly of calcium carbonate, with a little mag- 

 nesia, ferrous oxide, and phosphorus pentoxide. 



ORES AND VEIN MATERIALS. 



Table VIII. — Sand carbonates. 



L Sand CarboDate, Ore Coll. No. 36, Adelaide mine, North Iron Hill. 

 n. Sand Carbonate, Ore Coll. No. 33, Little Chief nine. Fryer Hill. 

 TTT Sand Carbonate, Waterloo mine. Carbonate Hill. 



