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Owning precious metals can also be a way to diversify an investment portfolio because it is a non-correlated asset to most other assets. Silver Bullion. The most exciting precious metals. Silver''s long history as a monetary metal make it a go-to asset for investors seeking wealth preservation. Today silver demand is bolstered a nuer of new

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Precious metals are rare, naturally occurring metallic chemical element of high economic value.Chemically, the precious metals tend to be less reactive than most elements (see noble metal).They are usually ductile and have a high lustre.Historically, precious metals were important as currency but are now regarded mainly as investment and industrial commodities.

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US5401296A US08/266,563 US26656394A US5401296A US 5401296 A US5401296 A US 5401296A US 26656394 A US26656394 A US 26656394A US 5401296 A US5401296 A US 5401296A Authority US United States Prior art keywords precious metal metal recovery aqueous phase slurry weight percent Prior art date 1994-06-28 Legal status (The legal status is an assumption and is not a legal

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The Earth''s crust [crust: The method used to extract metals from the ore in which they are found depends on their reactivity. » Learn More. Patent US5401296 - Precious metal extraction process In the latter method, the metals in dry ore are of matter useful for the extraction of precious metals

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Sep 22, 2020· Precious metals like gold, silver, and platinum have been recognized as valuable for a very long time. Learn more about what it takes to invest in these prized commodities.