Types of stones

Everyone knows that diamond is the most precious stone on earth. It is unique in that

Category Silicate minerals Name in English. Nepheline Formula (Na,K)AlSiO4 Group Feldspathoid Group Color White,

Carborundum (silicon carbide) is a dense material of varying degrees of transparency obtained by joining

Stones for us are not only luxury items, but also protectors and helpers.

At the moment, about one hundred and twenty colors of pearls are known to man. Among them there are such

Jade is an amphibole mineral with a characteristic fibrous structure. The stone has a unique ability to absorb mechanical energy

You don't need to be a jeweler with years of experience to learn how to determine the carat value of a diamond. General

History and legend of aventurine The color green represents life on Earth. Grass-colored mineral

Graff is a jewelry brand in the world Marjana (author) Graff is an English jewelry company specializing in

Hello, our precious readers! We again continue to explore the world of rare and precious minerals. Today