282 BROWN & HERON: GEOLOOY AND ORE DEPOSITS OF TAVOY. 



exception of the Peneichaung veins, which arc in granite, they arc 

 all in a sedimentary country rock. The general strike is I he normal one 

 lor the region and dips arc usually high. In the dry season the 

 concentrates are won from open-cuts and tribute adits in soft ground 

 In the rams ground-sluicing is practised. In 1916 a working option 

 was take,, over the property by the Bombay Burma Trading Corpora- 

 tion and experiments were made in pump-sluicing and milling 

 These were abandoned when the Corporation surrendered its option 

 in 1918. Large masses of wolfram., some of which attain a weight 



i T Vt f' !n? V ° b6en recovered fro * the detrital deposits at the 



base of the Thitpyintaung hill. 



Excellent sections of the undecomposed Peneichaung granite 

 can be seen m the Kyaukpyin quarry, where wide bands show exten- 

 sive grdsemsation and contain pyrite, chalcopyrite, and galena, 

 with thm l films of a violet fluorspar. This is the granite which 

 contains the Peneichaung wolfram-quartz lodes at a higher eleva- 

 tion. G 



Crisp's Concession also lias a number of peculiar barren crystal- 

 line quartz veins, made up of myriads of small, opalescent quartz 

 crystals, more or less imperfectly formed and set at all angles They 

 are not associated with the wolfram-bearing veins proper and were 

 perhaps formed at a later period and represent a phase of hydro- 

 thermal activity. y 



Rangoon Mining Go.'s Pagaye.-Thk mine lies to the south of 



Crisps on the southern side of the Pauktaing stream. It is the 

 oldest mine m the district and was discovered by Air J J \ p. lk , c 

 of the Geological Survey of India in April 1909. The prospecting 

 hcense dates from 1911. In 1916 a mining lease for a period of 

 60 years was issued. Its production has been as follows :— 



February 1010 t 



o 



August 1010 



Anga 



st 1010 to 



Ai 



igust 



ion 



W 



1911 fco 





f > 



1912 



>» 



1912 to 





J* 



1013 



J> 



1913 to 





yj 



1011 





1014 to 

 1915 to 





»» 



1915 

 1916 



J> 



1916 to 





»> 



1917 



)» 



1917 to 





ft 



1!)KS , 



J ODS. 



lo.-> 



.•524 



-Mil 

 I IS 

 IIS 

 OS 

 110 

 ITS 

 202 



The mine is the property of the Kangoon Mining Co Ltd and 

 paid handsome dividends in the early days of its existence ' In 

 1915 the management passed to Mr. J. W. Donaldson Aiken on a 



