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Precious Metals Magazine COVER Page

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Three Methods Of Assay For Raw Precious Metals
Items of jewelry or art made of precious metals are hallmarked based on specific requirements either of the country of import or the place of manufacture. Such items, particularly those made of silver, gold, or platinum, are struck with an official mark (or series of marks), which guarantees fineness or purity of the metal used.

Rhenium: Last Naturally Occurring Stable Precious Metal Discovered
In the periodic table of elements, rhenium is found as a third-row transition metal in group 7. Known to be one of the rarest precious metals in the Earth's crust, rhenium has an average concentration of 1 part per billion. It is obtained mainly as a by-product of the refinement of two other chemical elements - copper and molybdenum.

Rhenium: Last Naturally Occurring Stable Precious Metal Discovered
In the periodic table of elements, rhenium is found as a third-row transition metal in group 7. Known to be one of the rarest precious metals in the Earth's crust, rhenium has an average concentration of 1 part per billion. It is obtained mainly as a by-product of the refinement of two other chemical elements - copper and molybdenum.


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Precious Metals Magazine COVER PAGE Issue V-932


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Precious Metals Magazine

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