Types of stones

Alexandrite is a unique mineral of the chrysoberyl group that changes from bluish-green to cherry-purple in different lighting conditions.

A chain is a product consisting of many links. From their shape and method of fastening

Pearls are a piece of jewelry that will never go out of date. From the very beginning of our era and

It could become a precious stone, but it is better known in narrow circles - mineralogists,

Post updated: Jun 6, 2020 750 gold is leading in sales throughout

The natural power of gems Aventurine is a symbol of love and happiness. Such minerals are pink, green or

Property Description Formula Al2O3 Impurity Cr Hardness 9 Density 3.99-4.10 g/cm³ Refractive index 1.763-1.772

White agate is one of the unique varieties of chalcedony, which, in turn, belongs to

Skarn Stone Skarn is a generalized name for rocks of contact-metasomatic origin, which are dominated by

2020-07-02 2051 Position: Head of Financial Department at KSL Company Studied courses: CIMA P1 and