CONTENTS. 



PART I. 



Introduction — 



CHAPTER I. 



Packs. 

 167 



Bibliography — 



CHAPTER n. 



168 



Geology — 





178 



The Mergui Series 



. ■ . • 



. 178 



Granite and pegmatite . 



.... 



. 184 



Tertiary formations 



. 



194 



Recent and sub-recent formations 



196 



Physical geography 



PART II. 



. 198 



CHAPTER III. 



Tungsten — 

 Properties ....... 



Uses ........ 



Tungsten minerals in general .... 

 Modes of occurrence of tungsten minerals in Tavoy 

 Mineralogy of Tavoy district .... 



General distribution of wolfram and cassiterite in Tavoy 



CHAPTER IV. 



Srtuctures and Characteristics of Tavoy deposits-- 

 Wolfrara and 'cassiterite in granite 

 Wolfram and cassiterite in aplito . 

 Wolfram and cassiterite in pegmatite 

 Wolfram and_cassiterite in greisen 

 Veins — 



general features 



length, strike, dip 



composite veins 



nature of vein quartz 



" shoots " 



outcrops . 



tenor 



cassiterite content of concentrates 



203 

 203 

 204 

 207 

 209 

 209 

 225 



227 

 227 

 227 

 228 

 228 

 229 

 229 

 230 

 232 

 232 

 233 

 235 

 236 

 239 



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