TINSTONE OP IN1>1\ 1KB !:' K.MA 



mi liave rangixl from 50 to 60 million pound* during tbe five 

 .ilii.ii pounds sterling m \uiuf. Th.- m-h. 



i traffic in confectionary to 

 cooua hutter u till *uuillr, 

 return* of that 



I .:.._ ! 



TIN 



Ituuitity. l>ut ut o.iirs.- rrlutivnlv mm-h m..i 



million lioiliuls III U.M/hl all 1 flOHO OH OQ0 Illllllot, 



a i<l it ion to these supplier of chocolate, there it I 

 v. lin-li r.-i'iTonce has already ben made. 

 l.ut, ltd tilreiuly mentioned, HI" 



must .Ifiiute cocoiimit and not 



Of tin- import^ ,.| i;.i\v \il>rt. tin- Mntinh \\.-M I 



t In- list i if KM|>]il\ iny r. i untrue < I 7 milli 

 of the five years natm-il) ; thru come Portugal with 1 I 

 <l(.uht) ; (Vylim with 4A ; Knuuv with U ; Kcuador v /.il will 



l;i-tl\, tin- I'-i-iti-h \\ . -! Atri'Mii (Lago*) upply haM ?\ 

 in 1!K)2 to 2,112.3">2 lh. in 18 



. Soc. Ind. (Trans.), 1H35I. iii., 3'j ; \i . I.'T . I 

 Li., -Jos. :5'.i7. -MH, .V.I I : (Jonrn.) 1H45, iv.. 140 

 I Iff?, i\.. I'-.U . :; ; (Corrctp. and Select.) l^^. v i.. 71 . il'r< . 



vii., 20; (Corresp. and Select.) 29 I 



I7n ; uls,. Honduras Cacao. ISiCi. :ii>7 : ami AVun./ 1H9. 42, etc.: Oaxroo 



Indutt. in Oranada, West Ind. Bull., 1900, i., 416-22 ; also Art. Drying of Cacao. 

 I'.iol, ii.. 171-4.J 



TIN. Ball, Man. Econ. Geol Ind., iii., 313; Hughes. ing 



M?r-iui. in Eec. Geol Sun. Ind., 18K* 



Holland, Rev. Min. Prod. Ind., 1898-1903, in Pec. <-. Ind., 1905, 



xxxii., pt. 1, 90-3 ; 1907, xxxvi., pt. ii., 81. Tin is said i 

 native or as the sulphide (stannite). The commercial ore is known us the 

 deiitoxide, cassiterite, or "tinstone." When pure this contains about 

 78 per cent, of the metal. 



Occurrence. Within India proper tinstone may be said to be but 

 rarely found, but in Burma, more especially the southern portion of 

 Tenasserim, it forms extensive and valuable deposits. Ammliag to 

 Holland (I.e. 1905, 90-1), however, " tin has a wider distribution than 

 is generally recognised, and its minerals are often overlooked through 

 the difficulty in distinguishing them from other heavy minerals. Is<> 

 < -rystals of cassiterite have been found recently in pegmatites associated 

 with gadolinite in the Palanpur State, whilst in the Hazaribagh district 

 of Chota Nagpur instances have been recorded of the accidental pr- 

 tiou of tin from river-sands by the Native iron-smelters, in addition to 

 the recorded occurrences of ores in situ. The principal deposit. 

 has either been wrongly described or has received less attention than it 

 deserves, occurs in the Palganj estate near the Barakar river. 



" The only persistent attempts made to work tin have be>u in Burma, 

 where cassiterite is obtained by washing river gravels in the Bawlake 

 State, Karen-ni, Southern Shan States, ami in the Tavoy and Mergui dis- 

 tricts of South Burma. The work done on these deposits hitherto has 

 been, however, on a smaller scale than might be expected from the favour- 

 able reports which have been made as to their i-xti-nt ami ri.-hnee*.' 



He further states that the average outturn of tin-ore in South Burma, 

 during the period reviewed (1898-1903), was l.i,r> cwt., valued ut i< 

 and in 1906, 1,919 cwt., valued at 13,574. " The metal is exported mainly, 

 in the form of block tin, almost all of it going to tin* Straits S.-ttl.-menU. 

 This, during the years 1897-8 to 1902-3, averaged a year. 



During the same period, Holland points out that the average consumption 

 of foreign block tin in India itself was 24,959 cwt. ; " the tin exported from 



1077 



D.E.P., 

 vi., pt. iv. 



67-ea. 



Tin. 



Occur- 



) arc. 



Burma 

 Supply. 



.. -- 



