Which method uses X-rays to detect diamonds and an air jet to remove them from ore?

Which method uses X-rays to detect diamonds and an air jet to remove them from ore?

• A. A method to sort diamonds by color
• B. A method to weigh diamonds by density
• C. A recovery method that uses X-rays to detect diamonds and an air jet to remove them from ore
• D. A method to cut diamonds

Answer: (C)

Automated X-ray ore sorting is the method in question. It uses X-ray transmission to differentiate diamonds from the surrounding ore because diamonds attenuate X-rays differently than most other minerals. When the ore passes by the detector, diamonds create a distinct signal, and an air jet promptly removes that portion of material, capturing the diamonds for recovery. This approach is purpose-built for separating diamonds early in processing, unlike color sorting or density-based methods or cutting, which don’t use X-ray detection.

Automated X-ray ore sorting is the method in question. It uses X-ray transmission to differentiate diamonds from the surrounding ore because diamonds attenuate X-rays differently than most other minerals. When the ore passes by the detector, diamonds create a distinct signal, and an air jet promptly removes that portion of material, capturing the diamonds for recovery. This approach is purpose-built for separating diamonds early in processing, unlike color sorting or density-based methods or cutting, which don’t use X-ray detection.