Category Oxides (minerals) Name in English. Corundum Formula Al2O3 Group Corundum Group Color Colorless,
The stone does not belong to the list of the best among gems, but it brought it to the forefront
A cabochon is a decorative stone that has no edges. During processing, its surface becomes
Stone type Industrial Prevalence (Deposits) Africa, Iceland, Mexico, Russia, Central Asia, USA Transparency Transparent,
A signet is a piece of jewelry, on the flat top of which, according to the original plan, was depicted
In ancient times, grains were mainly used as units of mass for jewelry.
The opal stone is a gem of rare beauty. There are many varieties of this mineral, and
From generation to generation, the attitude towards gold is passed on as an unusual metal. Gold jewelry
History It is believed that the Greeks were the first to discover prasiolite. This happened more than 2500 years ago. Discoverers
Today we want to draw the attention of readers to a stone that has not yet broken records
