ii6 
Platinum  Production. 
(Am.  Jour.  Pharm. 
i    February.  1920. 
of  the  crude  metal,  cost  5,150,000  rubles.  Thus  i  troy  pound  of 
refined  platinum  cost  14,630  rubles.  The  rate  of  exchange  then 
prevailing  being  approximately  20  rubles  to  the  dollar,  a  troy  pound 
of  refined  platinum  may  be  said  to  have  cost  the  Omsk  Government 
$732. 
[Prepared  by  the  Russian  Division,  Bureau  of  Foreign  and  Domestic  Com- 
merce, Nov.  15,  1919,  chiefly  from  the  General  Survey  of  the  Principal  Branches 
of  the  Mining  and  Metallurgical  Industry  (in  Russian),  authorized  by  the  Rus- 
sian Mining  Department.] 
Platinum  is  found  in  Russia  only  in  the  Urals.  In  recent  years 
platinum  has  been  produced  chiefly  in  the  Nizhni  Tagil  region,  on 
the  western  slopes  of  the  Ural  Mountains,  and  in  the  Issov  region, 
on  the  eastern  slopes.  The  latter  is  divided  into  two  districts — 
Goroblagodat  and  Bisser.  Platinum  has  also  been  obtained  in  the 
northern  Urals — in  Nikolae  Pavdinsk  and  Rasstess  districts  and  in 
the  mines  of  the  Syssert  district.  In  the  Issov  region  the  produc- 
tion is  concentrated  in  the  basin  of  the  River  Issa.  To  the  north 
of  this  region,  near  the  borders  of  Rasstess  and  Nikolae  Pavdinsk 
districts,  platinum  is  obtained  in  the  Rivers  Sosnovka,  Kytlymam 
and  the  Little  Kosva.  Still  further  north  platinum  is  obtained,  to- 
gether with  gold,  in  the  left  tributaries  of  the  River  Vagran,  and  in 
the  basins  of  the  Rivers  Lobva,  Nyasma,  Lyalya,  Aktai,  Emekh, 
Talitsa,  etc.;  here  platinum  is  secondary  to  gold.  Platinum  is  ob- 
tained under  the  same  conditions  in  the  Little  Sosva  River.  It  is 
also  found  east  of  the  above-mentioned  regions  in  beds  located  in 
the  River  Ivdel. 
To  the  south  of  the  Issov  region,  in  the  properties  of  Barantchinsk, 
Verkhneturinsk  and  Nizhneturinsk  Mills,  platinum  is  dredged  in 
the  tributaries  of  the  River  Tagil  and  in  the  Rivers  Imyannyni  and 
Tura,  and  in  the  tributaries  of  the  River  Salda.  In  the  Nizhni  Tagil 
property  there  are  very  rich  beds  in  the  valleys  of  the  Rivers  Visim, 
Martyan,  Sisim,  Tchaush,  Tchernaya,  etc. 
Besides  Russia,  platinum  is  also  produced  in  Colombia,  Aus- 
tralia and  in  Oregon  and  California;  but  all  these  do  not  produce 
more  than  10  per  cent,  of  the  world  output. 
Production  and  Exports  0}  Platinum. — The  following  figures 
show  the  production  of  platinum  in  Russia  every  fifth  year,  from  1 843^ 
to  1898,  and  annually  since  1901: 
