There are a lot of precious metals hidden in a personal computer. From their alloys (gold, palladium, platinum and
Only jewelers know that pure silver is a precious metal that is not only beautiful, but also impractical.
As a result of a chemical reaction between silver and nitric acid, silver is formed, which goes
What is a gold nugget? A gold nugget is an opaque piece of native gold (ore rock), enriched
Post updated: July 19, 2020 Numismatists have their own definitions of the value of certain coins.
There are many ways to save gold jewelry and restore its shine at home. We
The hallmark of a noble metal is a mark used to indicate the composition of jewelry. She gives us
Gold mining in Russia by individuals, in other words, by ordinary people-miners, was either encouraged by the state or
Even the highest quality polished stones will dull over time and lose their dazzling shine. Blame
Each mark on silver belongs to one or another assay system. For example, brand 84
