MINERALOGY. 4 f 



summit is highly magnetic, and constitutes a magnificent 

 loadstone. 



Dr. Ure to whom Mr. Blundei! sent specimens of this 

 ore reported : 



" 1st Compact magnetic iron ore. — Tavoy, No. 1. 

 " Colour iron black with a metallic glimmer, fracture fine 

 grained, possesses magnetic polarity, specific gravity 3-51 1 . 

 compared to water= 1,000. 



w It yields in analysis the following constituents : 



Peroxide of iron 865 equivalent tc 



00-55 rrfetal. 



Silica with a trace of phosphate ) «,.- 



of lime. } 



Water, — ... 10-0 



100-0 

 It contains no manganese or titanium. 

 " 2d Compact magnetic iron ore. — Tavoy, No. 4. 

 External and Magnetic characters as above. 

 Specific gravity, 3*462. 

 It yields in analysis : 



Peroxide of iron ••• ••• •■= 86*0 equal to 60,2 metal. 



Silica with a trace of ) «.« 



phosphate of lime, $ 



Water, 13 1 



1000 



It contains neither manganese nor titanium. 



" 3d Tavoy ore, No. 2. — External characters as above. 

 Specific gravity, <• ■.. 4369. 



" 4th Tavoy ore, No. 3. — Characters as above, as to 

 aspect and magnetism. 



Specific gravity, • 4-100. 



"The two latter samples are even richer than the former, 

 as is evinced by the specific gravity, but they are all quite 

 rich enough and pure enough for making the best quality 

 of bar-iron and steel. 



" I instituted two elaborate sets of experiments in search 

 of titanium, which when present in any notable quantity 



