Causes of blackening of gold. Gold is a very malleable, soft, yellow metal. This metal is accepted
Post updated: Jun 6, 2020 Gold is a noble metal that has enjoyed great popularity among many
Gold, with the exception of platinum, is the most expensive metal on the planet. To its undoubted advantages
Sapphires of rich pink or blue color are not found in nature as often as we would like
Californian Atomic number 98 Appearance of the element Metal, possibly silvery-white Properties of the atom
Good afternoon, readers! In this article you will find information about one of the most difficult
Hearing the word “gold”, a person imagines the classic yellow color, the noble sunshine. In the traditional view
Sample systems The precious metal content here is determined by the number of grams in one kilogram of jewelry alloy.
In nature, there is a hairy stone, which has a rather unusual appearance. And all because
Good afternoon, reader! In today's episode we'll talk about how to give jewelry its original look.