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Practice Listening: Fill in the Blanks (Type In)
ID: #46358
Short
Geologists
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Geologists worldwide think that almost all diamonds in commercial diamond deposits were assembled in the mantle and because of volcanic they move towards the surface after tearing through the mantle. For the of natural diamonds, very high temperatures and are required. This is approximately 2000 degrees Fahrenheit or 1050 degrees C. This cannot be found anywhere on the Earth, except at a depth of about 150 kilometers the earth's surface. The types of eruptions which have caused these have never been by scientists to date.
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