How are emeralds mined?
How Are Emeralds Mined? | eHow
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5. How Are Emeralds Mined?
** How Are Emeralds Mined? **
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Emeralds are found close to the earth's surface, which limits mining
options. emerald ring image by studio vision1 from Fotolia.com
Mining for emeralds is delicate work. These gemstones are often hidden in
other, less valuable, rocks. The best emeralds are usually found close to
the earth's surface, making initial exploration a dainty task. Exploration
is best done by hand, since machinery could destroy or blast away the
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· Unlike diamonds, rubies and sapphires, emeralds are not found along
riverbanks. They are embedded in rocks, making their retrieval difficult.
Complicating things further, emeralds might be hidden in rocks among layers
of mica schist, a flaky, thin mineral. Cutting through the mica may be the
only way to reach a hidden emerald inside.
· One way to mine emeralds is through the open-pit method. Workers dig a
large pit about 12 meters deep
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