History and origin The history of the gem dates back five thousand years. Mineral the color of heaven among ancient peoples
The highest standard of silver in jewelry The purest standard of silver The lowest standard
Assortment of minerals The list of names of green stones includes purely green species and varieties of this shade
The concept of “precious metals” includes gold, silver and platinum group metals. Thanks to the high chemical
Silver is one of the most popular metals in the world, discovered in ancient times. Some
History of the stone The mineral was first mentioned at the dawn of the 16th century: chroniclers call it slate (viper)
What: Ornamental; Deposits: Mexico, Ecuador, Iceland, Japan, Ethiopia, Armenia, Turkey, Russia (Kamchatka, Caucasus, Kuril
In addition to decent size and weight, the criteria for the quality of an emerald are its shade and clarity. Possessing
There are not many gems on Earth that can boast of a noble brown color, these are: agate, onyx,
Classification of precious stones. Varieties of precious stones by color. How to identify a real stone among many
