Mining in Sierra Leone
Encyclopedia
The mining industry of Sierra Leone accounted for 4.5 percent of the country's GDP in 2007 and minerals made up 79 percent of total export revenue with diamonds accounting for 46 percent of export revenue in 2008. The main minerals mined in Sierra Leone
Sierra Leone
Sierra Leone , officially the Republic of Sierra Leone, is a country in West Africa. It is bordered by Guinea to the north and east, Liberia to the southeast, and the Atlantic Ocean to the west and southwest. Sierra Leone covers a total area of and has an estimated population between 5.4 and 6.4...

 are diamonds, rutile
Rutile
Rutile is a mineral composed primarily of titanium dioxide, TiO2.Rutile is the most common natural form of TiO2. Two rarer polymorphs of TiO2 are known:...

, bauxite
Bauxite
Bauxite is an aluminium ore and is the main source of aluminium. This form of rock consists mostly of the minerals gibbsite Al3, boehmite γ-AlO, and diaspore α-AlO, in a mixture with the two iron oxides goethite and hematite, the clay mineral kaolinite, and small amounts of anatase TiO2...

, gold
Gold
Gold is a chemical element with the symbol Au and an atomic number of 79. Gold is a dense, soft, shiny, malleable and ductile metal. Pure gold has a bright yellow color and luster traditionally considered attractive, which it maintains without oxidizing in air or water. Chemically, gold is a...

, iron
Iron
Iron is a chemical element with the symbol Fe and atomic number 26. It is a metal in the first transition series. It is the most common element forming the planet Earth as a whole, forming much of Earth's outer and inner core. It is the fourth most common element in the Earth's crust...

 and limonite
Limonite
Limonite is an ore consisting in a mixture of hydrated iron oxide-hydroxide of varying composition. The generic formula is frequently written as FeO·nH2O, although this is not entirely accurate as limonite often contains a varying amount of oxide compared to hydroxide.Together with hematite, it has...

.

Mining in Sierra Leone, especially diamond mining, has been seen as one of the key factors for instability in the country and one of the reasons for the country's recent civil war
Sierra Leone Civil War
The Sierra Leone Civil War began on 23 March 1991 when the Revolutionary United Front , with support from the special forces of Charles Taylor’s National Patriotic Front of Liberia , intervened in Sierra Leone in an attempt to overthrow the Joseph Momoh government...

. Traditionally, benefits from diamond mining have ended up with private companies and corrupt officials rather than the country's government and people. The Ministry of Mineral Resources
Ministry of Mineral Resources (Sierra Leone)
The Ministry of Mineral Resources Sierra Leone is located on the 5th Floor Youyi Building, Brookfields, Freetown, Sierra Leone. Further to this the MMR Geological Surveys Department can be found at the New England estate, also in Freetown...

 is responsible for the management of the country's minerals sector and the Mines and Minerals Act 2009. Sierra Leone is a candidate for the Extraction Industries Transparency Initiative (EITI).

History

Organised mining began in the 1920s with bauxite first being recorded in 1920 along the Falaba
Falaba
Falaba is a former town in the Solima area, Koinadugu District of the Northern Province of Sierra Leone. The population of Falaba is largely from the Mandingo and Kuranko ethnic groups. The village is largely muslim.-History:...

 to Waia
WAIA
WAIA is a radio station licensed to Beaver Dam, Kentucky, USA. The station is currently owned by Starlight Broadcasting Co., Inc..-History:...

 road. Diamonds were found in the early 1930s, from 1934 to 1956 the Sierra Leone Selection Trust
Sierra Leone Selection Trust
The Sierra Leone Selection Trust was formed in 1934 following an agreement between the government of Sierra Leone and the Consolidated African Selection Trust Ltd . CAST was formed in 1924 and was part of a much larger mining finance house Selection Trust Ltd which had been founded in 1913 by...

 (SLST) held the monopoly
Monopoly
A monopoly exists when a specific person or enterprise is the only supplier of a particular commodity...

 for mining, prospecting for and marketing diamonds though out Sierra Leone. The Consolidated African Selection Trust Ltd (CAST), which owned mining operation around West Africa
West Africa
West Africa or Western Africa is the westernmost region of the African continent. Geopolitically, the UN definition of Western Africa includes the following 16 countries and an area of approximately 5 million square km:-Flags of West Africa:...

, provided the initial capital for the SLST. The monopoly was originally given for 99 years but in 1955 the SLST gave up rights to alluvial deposits outside its lease area. This allowed artisan
Artisan
An artisan is a skilled manual worker who makes items that may be functional or strictly decorative, including furniture, clothing, jewellery, household items, and tools...

 and small scale mining of alluvial deposits, and by 1965 there had been a large movement from agricultural work to working these deposits. In 1970 a joint SLST and government organisation was formed call the National Diamond Mining Corporation (NDMC).

Before the start of the Civil War
Sierra Leone Civil War
The Sierra Leone Civil War began on 23 March 1991 when the Revolutionary United Front , with support from the special forces of Charles Taylor’s National Patriotic Front of Liberia , intervened in Sierra Leone in an attempt to overthrow the Joseph Momoh government...

 in 1991 250,000 people made a living in the mining and quarrying sector with direct and indirect employment accounting for 14% of the country's total labour force.

Rutile

Sierra Leone is ranked as one of the top five producers of rutile
Rutile
Rutile is a mineral composed primarily of titanium dioxide, TiO2.Rutile is the most common natural form of TiO2. Two rarer polymorphs of TiO2 are known:...

, a titanium
Titanium
Titanium is a chemical element with the symbol Ti and atomic number 22. It has a low density and is a strong, lustrous, corrosion-resistant transition metal with a silver color....

 ore
Ore
An ore is a type of rock that contains minerals with important elements including metals. The ores are extracted through mining; these are then refined to extract the valuable element....

, used in paint pigment and welding rod coatings. The government issued leases for mining rutile are held by Sierra Rutile Limited which is owned by Titanium Resources Group which is owned by European and U.S investors. These leases cover 580 km2 of land where there are 19 identified deposits of rutile. In 2009 the Government of Sierra Leone received Le
Sierra Leonean leone
-Banknotes:In 1964, the Bank of Sierra Leone introduced notes in denominations of 1, 2 and 5 leones. 50 cents notes were added in 1979, followed by 10 leones in 1980 and 20 leones in 1982...

 1,854 million in royalties from rutile mining. In 2009 production decreased by 19.07 percent to 63,860 tons, and exports were worth US$ 35,920,300.

Gold

Gold mining in Sierra Leone consisted of small scale operation exploiting alluvial deposits. After the end of the Sierra Leone Civil War
Sierra Leone Civil War
The Sierra Leone Civil War began on 23 March 1991 when the Revolutionary United Front , with support from the special forces of Charles Taylor’s National Patriotic Front of Liberia , intervened in Sierra Leone in an attempt to overthrow the Joseph Momoh government...

 exploration of gold grew and by 2013 to 2015 new modern mines are expected to be in production. In 2010 Cluff Gold, a British
United Kingdom
The United Kingdom of Great Britain and Northern IrelandIn the United Kingdom and Dependencies, other languages have been officially recognised as legitimate autochthonous languages under the European Charter for Regional or Minority Languages...

 company, found gold deposits in the rocks of the southern Kangari hills and is planning to build a mechanised mine to extract it. In 2009 production levels of gold fell by 17.71 percent to 5060 Troy Ounces (157 kg) from 6150 Troy Ounces (191 kg) in 2008. This was due to a drop in mining activity in the second half of the year and was despite a rise in the price of gold on the global market. The increase in the value of gold meant gold exports were worth 15.73 percent more at US$4,764,000 in 2009 compared to US$4,116,400 in 2008.

Diamonds

Diamonds are found in about a quarter of Sierra Leone in the south-east and east of the country, with the diamond fields cover 7,700 square miles. The main production areas are concentrated around the drainage areas of rivers in the Kono
Kono District
Kono District is a district in the Eastern Province of Sierra Leone. Its capital and largest city is Koidu Town. The other major towns in the district include Yengema, Tombodu, Motema, Jaiama-Nimokoro and Sewafe. Kono District is the largest diamond producer in Sierra Leone.The population of Kono...

, Kenema
Kenema District
Kenema District is a district in the Eastern Province of Sierra Leone. Its capital and largest city is Kenema, which is also the third largest city in Sierra Leone. The other major towns in the district include Tongo and Blama. The district is the most populous district in the Eastern province with...

 and Bo
Bo District
Bo District is the second most populous district in Sierra Leone and is located in the Southern Province of the country. Its capital and largest city is the city of Bo, which is the second largest city in Sierra Leone. The other major towns in the district include Baoma, Bumpeh, Serabu, Sumbuya,...

 Districts. In the Kono, Kenema, Bo and Pujehun
Pujehun District
Pujehun District is a district in the Southern Province of Sierra Leone. Its capital is the town of Pujehun . The other major towns in the district include Gandorhun, Zimmi, Bomi and Potoru.The district has a 2010 estimated population of 276,970....

 Districts there are 1,700 artisanal mining licenses in operation. In 2009 the government recorded exports of 400,480 carat
Carat
Carat or karat may refer to:In the gem business:* Carat , a unit of mass for gemstones, equal to 0.2 gram* Carat or karat, a unit of purity for goldIn Judaism:...

s (80,096 g) of diamonds, this included 143,620 carats (28,724 g) of industrial diamonds and 256,860 (51,372 g) of gem
Gemstone
A gemstone or gem is a piece of mineral, which, in cut and polished form, is used to make jewelry or other adornments...

 diamonds. This was and increase of 7.86 percent on the previous year which was a result of legislative changes, in the form of a new mining law, to enable fees and royalties to be collected more effectively and an increase in the amount of diamond mining. Diamond exports were worth US$ 78,373,900 in 2009 accounting for 59 percent of the country's exports. The drop in the value of diamonds on the world market meant that the value of diamond exports decreased by 20.68 percent in 2009 compared to 2008.

The largest diamond found in Sierra Leone, and the third largest diamond in the world, was a 969.8 carat (194 g) rough diamond. It was found in the 1972 and named the Star of Sierra Leone
Star of Sierra Leone
The Star of Sierra Leone diamond was discovered by miners on February 14, 1972 in the Diminco alluvial mines in the Koidu area of Sierra Leone. It ranks as the third-largest gem-quality diamond and the largest alluvial diamond ever discovered....

.

Bauxite

Sierra Leone's production of bauxite
Bauxite
Bauxite is an aluminium ore and is the main source of aluminium. This form of rock consists mostly of the minerals gibbsite Al3, boehmite γ-AlO, and diaspore α-AlO, in a mixture with the two iron oxides goethite and hematite, the clay mineral kaolinite, and small amounts of anatase TiO2...

, an aluminium
Aluminium
Aluminium or aluminum is a silvery white member of the boron group of chemical elements. It has the symbol Al, and its atomic number is 13. It is not soluble in water under normal circumstances....

 ore, is around one percent of the total global production. Deposits occur between Moyamba
Moyamba
Moyamba is the capital and largest city of Moyamba District, in the Southern Province of Sierra Leone, with a population of 11,485 in the 2004 census. The city is about 48 miles southeast of the capital, Freetown. The population of the city is ethnically diverse although the Mende people make up...

 and Mano, on the Freetown
Freetown
Freetown is the capital and largest city of Sierra Leone, a country in West Africa. It is a major port city on the Atlantic Ocean located in the Western Area of the country, and had a city proper population of 772,873 at the 2004 census. The city is the economic, financial, and cultural center of...

 Peninsular, at Krim-Kpaka in the Pujehun District, southern Sierra Leone; in north on the road from Falaba
Falaba
Falaba is a former town in the Solima area, Koinadugu District of the Northern Province of Sierra Leone. The population of Falaba is largely from the Mandingo and Kuranko ethnic groups. The village is largely muslim.-History:...

 to Waia
WAIA
WAIA is a radio station licensed to Beaver Dam, Kentucky, USA. The station is currently owned by Starlight Broadcasting Co., Inc..-History:...

, at Kamakwie
Kamakwie
Kamakwie is a small town in Bombali District in the Northern Province of Sierra Leone. The population of the town was over 8,098 in 2006 estimate...

 and Makumre.

Sierra Minerals Holdings is the only company mining bauxite in the country, and the second largest employer in the mining industry. It runs the Sieromco Bauxite Mine as well as holding the mining lease to 321.7 km2. In 2009 production of bauxite fell by 22.17 percent to 742,820 tons. This was due to Sierra Minerals ceasing production from June to September 2009 as a response to falling global demand for aluminum, which is produced from bauxite.

Iron

Mining for haematite iron ore recommenced at Marampa mine on 11 February 2010 after 35 years. The mine is owned by London Mining which also owns an exploration license covering 319 km².
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