separating gold from quartz

Jewelry - The history of jewelry design | Britannica.com

The history of jewelry design. The possibility of tracing jewelry's historic itinerary derives primarily from the custom, beginning with the most remote civilizations, of burying the dead with their richest garments and ornaments.

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Refining and Assaying - Midwest Refineries

The separating and purifying of precious metals from other metals is called refining. Smelting is the separation of precious metal from non-metallic impurities.. Midwest Refineries is committed in using correct and accurate evaluation methods of all precious metal shipments from our valued customers.

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