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GOLD OPPORTUNITIES.

Introduction.

Gold has shared the spotlight with diamonds as Tanzania’s principal mineral product since the early 1900s. The rate of gold production has varied considerably (Fig .13), and at times has been entirely from individual prospectors or artisanal miners working with hand tools, in the fashion of the ‘garimpeiros’ of Brazil and many other tropical countries. During the mid 20th Century, Tanzania experienced a notable yield of gold from mechanized mines until 1966 when the last mine at Geita was closed down. Since then, gold production was mainly from artisinal miners and production records were uncertain and subject to great variations. Recent economic reforms have given impetus to gold output, where new modern mechanized mining has started with the inauguration of Golden Pride Mine in 1998 at Lusu in Nzega. Other new mines came on stream as follows:

Bulyanhulu Mine in 2000, Geita Gold Mine in 2001, North Mara Gold Mine in 2002 and Buhemba in 2003. Tulawaka Gold Mine started production in March 2005. STAMICO’s Buck Reef Mine in the Rwamagaza greenstone belt closed in 1991 due to logical problems. However, East African Mines has a joing venture with STAMICO to rehabilitate the mine.

All the opportunities involve varying degrees of technical and economic risk. The opportunities most highly rated are in the Table 3. Previous gold producers still considered to have merit are listed on the table below. Due to the increasing interest in gold properties,

 

 
     

 

Table 3. Former Important Gold Mines up to 1998.

Location Name (s) Period of operation Production kg.gold Grade g/t gold
GEITA GREENSTONE BELT Geita Gold Geita Ridge 8 Bismarck Reef Prospect 30 1938 - 1966 1939 - 1966 1938 - 1954 1913 - 1914 1939 - 1953 Mine 27,440 c.5
MUSOMA - MARA GREENSTONE BELT Buhemba Nyasenero Mrangi (Phoenix) Simba Sirori Maji Moto Kiabakari Mara Mine 1913 - 1970 1922 - 1970 1932 - 1965 1920 - 1938 1920 - 1938 1928 - 1940 1933 - 1966 1932 - 1970 12, 213 12,213 155 300 Small 8,810 1,943 12.6 High grade 12 - 14 15.3
NZEGA GREENSTONE BELT Canuck 1945 - 1953 230 6.2
KILIMAFEDHA GREENSTONE Ngasamo Nigoti 1909 - 1955 1932 - 1964 20.1 71.7 1.5 - 13.6 g/t 4.4 g/t
RWAMAZAGA GREENSTONE BELT Buck Reef Mawe Meru 19082 - 1990 1930 - 1952 100 2,300 7 - 10 27
IRAMBA - SEKENKE GREENSTONE BELT Sekenke 1909 - 1956 4,300  
LUPA GOLDFIELD New Saza 1939 - 1956 4,300  
LUPA GOLDFIELD New Saza Ntumbi 1939 - 1956 1937 - 1965 8,390 1,709 7.5 12.
LUPA GOLDFIELD New Saza Ntumbi 1939 - 1956 1937 - 1965 8,390 1,709 7.5 12.1
MPANDA DISTRICT Mukwamba (by product of Pb - Cu-Ag mining Artisinal Mines Various 1950 - 1961 1990 - 1998 2,177 15,900 1.56