Gold is one of the most precious metals extracted from mines. It is extracted in a solid form, proving to be a metal which is very easy to be manufactured later on. Thanks to the reputation it got in time and the endless ways in which it can be used, the precious metal became a kind of king of all metals, being regarded as a superlative extending its meaning upon other rare products as well.

During the time of the king Henry the 2nd people used to believe that liquid gold was the elixir of youth and beauty. His mistress, Diane de Poitiers was thought to have died because of a too large amount of precious metal ingested. Researches made upon her body showed there was a large amount of glittering metal in her hair and taking into account that she was no queen to have worn a crown, which was the only possible answer.

Nowadays, liquid gold is used in restoration, meant to cover walls or pieces of furniture with a certain degree of coverage. It is used for internal finishing works in the case of walls, furniture or windows. The liquid dries slowing, being perfect for the work of finishing. This is also called colloidal gold as it is a solution which contains yellow metal dust mixed with a certain binder.

Liquid gold is also used in very small amounts in different cosmetic products meant to offer complexion the color of gold, used especially in fashion parades.

Still, thanks to its rare qualities, other products seemed to become as good as the glittering metal. For instance, Homer used to consider that the olive oil was "liquid gold" thanks to its attributes. An alimentary and pharmaceutical jewelry, this type yellow metal" abounds in antioxidants and fatty acids which are real medicine. Another type of "liquid gold" is petrol. Thanks to its rarity, usefulness and high price, it is compared with the black gold from jewels.

In time different other substances got the same name. Among them, urine, colostrums and wood cleaning products are the most well-known. The conclusion is that every unique, precious substance is compared to gold, being the metal which has not lost its qualities and importance in time. They proved to be as good as gold bars.