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  2. Geology of the Democratic Republic of the Congo - Wikipedia

    en.wikipedia.org/wiki/Geology_of_the_Democratic...

    DRC also has large diamond deposits, mainly extracted through artisanal mining of alluvium near Mbuji-Mayi in Kasai Province, although many of these reserves are becoming depleted. One third of the DRC's diamonds are smuggled out of the country every year. [8] Limestone occurs in Kongo Central, Équateur and Haut-Katanga provinces. [9]

  3. Judith Mountains - Wikipedia

    en.wikipedia.org/wiki/Judith_Mountains

    Epithermal gold and silver veins are found along the intrusive contacts. [8] The mountains were the center of gold and silver mining in the 1800s and current exploration continues. [4] [9] The old mining camps of Maiden and Gilt Edge were built during the mining boom in the 1880s and 1890s. [4] Southwest flank of the Judith Mountains from Big ...

  4. Birimian - Wikipedia

    en.wikipedia.org/wiki/Birimian

    The Birimian rocks are major sources of gold and diamonds that extend through Ghana, Côte d'Ivoire, Guinea, Mali and Burkina Faso. They are named after the Birim River, one of the main tributaries of the Pra River in Ghana and the country's most important diamond-producing area. Ghana and Mali are the second and third largest producers of gold ...

  5. Confederate Gulch and Diamond City - Wikipedia

    en.wikipedia.org/wiki/Confederate_Gulch_and...

    The gold production of Confederate Gulch created massive gold shipments from the gulch, starting with the spectacular production of Montana Bar. A single shipment of gold in 1866, representing a short run of gold bearing gravel through the sluice boxes weighed two tons and was valued at $900,000.00. [10]

  6. List of lost mines - Wikipedia

    en.wikipedia.org/wiki/List_of_Lost_mines

    Although there are countless examples around the world, several common themes can be traced throughout the various legends. Usually the mines are said to contain valuable elements or minerals such as gold, silver or diamonds. Often there is a map or other document allegedly detailing the history or location of the mine. Common to all the lost ...

  7. Mining industry of the Democratic Republic of the Congo

    en.wikipedia.org/wiki/Mining_industry_of_the...

    Rough diamonds from the Democratic Republic of the Congo. Their yellow color is due to the presence of impurities which absorb blue light. Diamond mining in the DRC is done mostly by artisanal miners, and almost exclusively by hand. [30] Artisanal diamond mining employs an estimated 1 million people in the DRC. [31]

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  9. Mahd adh Dhahab - Wikipedia

    en.wikipedia.org/wiki/Mahd_adh_Dhahab

    Mahd adh Dhah gold deposit geologic map Mahd Al Thahab gold mining cross section. The Mahd Al Dhahab (Arabic: مَـهـد الـذّهـب, "Cradle of (the) Gold"), is a small gold mining area in the Arabian Peninsula. It is located in the Medina Province in the Hejaz in Saudi Arabia. Gold was first mined in Arabia c. 30th century BC.