Post updated: Jun 6, 2020 In ancient times, gold was tested in the simplest and most reliable way
Gold is a noble metal that indicates a person’s wealth. Therefore, fashion for jewelry
Since ancient times, gold has been considered a noble metal. Its enchanting shine and similar to the rays
Category Oxides (minerals) Name in English. Leucosapphire Formula Al2O3 Group Corundum Group Color Colorless, Gray,
May 18, 2021 The length of chains around the neck is one of the most controversial and discussed
Rarely does anyone doubt whether an emerald or a diamond is more expensive. If
Both men and women are happy to wear such an accessory as a gold chain, on which
Refining of precious metals is a special purification procedure. Precious metals can be subjected to it in the following form:
Diamond and diamond - what's the difference? Some people think it's the same thing
Romantic stories, legends and beliefs are associated with this precious mineral. The most famous pearl -
