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29 march 2024, friday
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Easy reading (about gems).

The kingdom of minerals

 

Description of the main minerals, their deposits and their importance for industry. Gems. The work of Dr. R. Browns. St. Petersburg. 1906

A popular scientific publication about the origin, form, structure, physical and chemical properties of minerals, illustrated with tables and pictures (chromolithography) of minerals in their natural color with their characteristic luster and transparency. In the description of minerals, special attention was paid to their use.

The publication is equipped with photographs of stones and descriptions of deposits presented in the tables of the application.

 

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