Ornamental stones

Category Oxides (minerals) Name in English. Quartz Formula SiO2 Group Group of glass-forming oxides Color White,

Good afternoon dear friends! Our article today is dedicated to aventurine - the ruler of the souls of fashionistas and

Methods for measuring hardness The degree of strength of a material is assessed by pressing a stronger object into it,

Devil's finger stone, also known as belemnite, is an ancient mollusk, or rather, its

History and origin Rose quartz is covered in legends and traditions like no other gem.

History and origin The first description of natural amber dates back to the 10th century BC. Priests

Agate is a controversial mineral. On the one hand, it is quite ancient - people talk about it

History and origin The semi-precious lunar mineral throughout the history of civilization has been an object of admiration, admiration,

Among the entire variety of rocks on Earth, the main group consists of igneous ones, which were formed during

History and origin The first discoveries and uses of feldspar go back to ancient times. Accurate