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GOLD
TYPES OF GOLD
GOLD TREATMENTS
SILVER
MINING AND REFINING
OUTLOOK AND INVESTMENTS
LOMBARD
JEWELRY
HOW TO CLEAN
HOW TO CONTROL
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GENERAL
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JEWELRY
Why gold turns black on the human body: scientific and folk versions of the causes of oxidation
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Gold jewelry is one of the most valuable and expensive
HOW TO CLEAN
The top 5 best ways to clean a gold diamond ring at home quickly and effectively: tough measures in emergency cases
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A diamond is a diamond with certain properties.
JEWELRY
Can gold rust or change color
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Gold as one of the elements of the platinum group refers to
HOW TO CONTROL
How to check the gold at home iodine for authenticity: instructions for testing and cleaning products, deciphering the result, alternative ways to test jewelry
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The authenticity of precious metals is usually verified by
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