While we sleep, our brain rests, but does not turn off completely. It's an amazing state when
Copper minerals and their formulas Synonyms: Cuprocuprite was the name given to thin mixtures of native copper and cuprite
When receiving a gift or purchasing jewelry, each of us at least once a
Methods for cleaning gold You can clean gold not only in specialized workshops, but also at home.
Today, ultraviolet light is used to solve a wide variety of problems, including the search for minerals.
Any chemical compound that has two acyl groups bonded to the same atom
: 18 Apr 2022, What color is jade? , volume 82, no. 2 The desire to decorate
Bracelet Wrist jewelry. They are divided into monolithic and wicker. In the first case, the bracelet
Many people know that diamond is the hardest natural material in the world. Some have heard or perhaps
An ornamental stone is a natural mineral or rock that has rich colors, an interesting texture,
