Open-pit mining is defined as what?

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Prepare for the Gemological Institute of America's Graduate Diamonds Exam. Enhance your expertise with comprehensive quizzes and insightful explanations. Be ready to excel!

Multiple Choice

Open-pit mining is defined as what?

Explanation:
Open-pit mining means removing diamond-bearing ore from a large opening at the surface. It’s a form of surface mining used when the ore body is close to or at the surface and spread over a wide area, so mining can access it with earthmoving equipment rather than tunneling underground. The pit is excavated in benches, overburden is removed, and ore is hauled to processing facilities. This contrasts with underground mining, and it’s not about mining along riverbanks or using flotation as the mining method.

Open-pit mining means removing diamond-bearing ore from a large opening at the surface. It’s a form of surface mining used when the ore body is close to or at the surface and spread over a wide area, so mining can access it with earthmoving equipment rather than tunneling underground. The pit is excavated in benches, overburden is removed, and ore is hauled to processing facilities. This contrasts with underground mining, and it’s not about mining along riverbanks or using flotation as the mining method.

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