Red gold: sample, composition and method of production Gold is a soft metal, so when working
May 18, 2021 The length of chains around the neck is one of the most controversial and discussed
What are white and yellow gold? White and yellow are alloys based on Au
Category Silicate minerals Name in English. Lepidolite Formula KLi2Al(Al,Si)4O10(F,OH)2 Group Mica Group Color Purple,
History of origin The ancient origin of the stone has been historically proven. The mineral magnesite was first discovered in Ancient Greece
Physical and chemical properties Cognac diamonds in nature are brown diamonds. Colorless diamond
Natural minerals are a symbol of strength and natural reliability. Their formation took hundreds and
Known since ancient times, green aventurine has attracted people’s attention not only with its beauty, but
Characteristics of White Sapphire White sapphire is a type of corundum. Leucosapphire is a type of transparent corundum. Conditionally
Ophite? - a representative of the serpentine (coil) group. The name of this jewelry stone comes from the Greek word for “office”,
