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Different Techniques of Gem Mining « Gemstone World

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gemstone mining processes and equipment, Diamond Extraction Methods - Emporia State University Picture from Diamond Mines of the World Legrand (1980) states that .

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Mining for sapphires is not an easy job Lou will explain the several process you need to go through before finding that special stone

Mining - Wikipedia

Mining is the extraction of valuable minerals or other geological materials from the earth, usually from an orebody, lode, vein, seam, reef or placer deposit

Surface Mining Methods and Equipment

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Topaz: Mining - Topaz: The Gemstone

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Garnet | Minerals Education Coalition

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