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50.4 MINERAL DEPOSITS IN GHANA

Utilization of Ghana’s mineral resources is managed _ Mineral Commission of Ghana. Important mineral deposits .in Ghana and their locations in Ghana are discussed as follows:

1. METALS

The major metallic minerals of Ghana are gold, bauxite, iron and manganese. At present, gold, bauxite and manganese are being mined in Ghana.

Gold: There is great potential of gold exploration in Ghana. It is the main focus of majority of foreign and local exploration companies in the country. The main gold deposits in Ghana are at Obuasi, Tarkwa, Pres tea, Damang, Bogoso, Aboso, Bibiani Kenyase, and Ntronang-Abrem.

Bauxite: Ghana has large deposits of good quality bauxite in the Western, Eastern and Ashanti regions. The four major bauxite deposits in Ghana are; Sefwi-Bekwai (Awaso), Kibi, Ejuanema and Aya-Nyinahin deposits.

Iron: There are three main iron ore deposits in Ghana. These are: Shieni, Oppong Mansi and Pudo.

Manganese: There are two types of manganese ores which occur in Ghana. These are oxides and carbonate. The major deposits are at Nsuta in the Western region.

Manganese occurs in seven of the ten regions of Ghana, in the Central, Eastern, Western, Ashanti, Northern, Upper- west and Upper-east.

2. PRECIOUS STONES

Diamonds: Ghana’s diamond mining industry has produced industrial grade gems since the 1920′s. These are mainly mined from the Birim and the Bonza diamond fields. Diamonds found in Ghana are found in alluvial gravel. More than 11 million carats of proven and probable reserves are located about seventy miles North-west of Accra. Currently one million carats of diamonds is produced in a year. Ghana is 9th largest producer of diamonds in the world.

3. INDUSTRIAL MINERALS

Limestone (CaCO3). There are four limestone deposits in Ghana. These are Buipe, Nauli Oterkpolu and Bongo-Da deposits.

Dolomite (CaCO3 MgCO3).The main dolomite deposit is located at Buipe-Baka area in the Northern region.

Solar Salt. Ghana possesses one of the largest proven renewable solar salt production potential along the entire coastline stretching over a distance of over 500 km. Effective exploitation would enable the country to meet the needs of the entire sub-region.

At present Ghana’s total annual production of salt is about 250,000 tonnes.

A massive development of the salt industry within the catchment area of the Songhor Lagoon, in the Ada Traditional Area, is to take off soon.