Characteristics

The popular and always eye-catching gem was named for its resemblance to the eyes of a cat.

The gemstone has a very interesting feature of influencing the person who wears it. People loving

Methods for cleaning gold You can clean gold not only in specialized workshops, but also at home.

An ornamental stone is a natural mineral or rock that has rich colors, an interesting texture,

Cryolite was known to the Eskimos long before its discovery by Europeans. The name of the mineral comes from the Greek

What: ornamental; Deposits: Pakistan, Iran, Egypt, Mongolia, Argentina, Australia and Bulgaria, Russia and the CIS

There are several laboratory methods for accurately determining the purity of karat gold. They can be destructive, with

Category Silicate minerals Name in English. Vesuvianite Formula Ca19(Al,Mg)13(?,B,Al,)5[SiO4]10[Si2O7]4(OH,F)10 Group Vesuvianite group Color Yellow,

Quartz is a stone whose name translates as “hard.” The number of precious stones that are classified as

Historical background Tourmaline was known to the healers of Ancient Rome, Byzantium and Rus' (XIV century). Through