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Рассказы о драгоценных камнях

213472

Петров Валерий Петрович

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0,2 kg

Germany
 balta
Postive 96.8% (172)
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The author talks in a popular form about the conditions of formation, the history of the discovery and development of deposits of the most important precious and semi-precious stones. It tells about diamond deposits - the so-called kimberlite pipes - "windows" into the depths of the Earth, where pressures of more than 30 thousand atmospheres prevail, about green, chromium-colored emeralds, about pegmatite veins with topaz and beryl - aquamarine, as well as about lapis lazuli, malachite and turquoise. The stories end with a brief overview of the economic significance of the stone and some information on the synthesis of precious and semi-precious stones. The book is equipped with illustrations.

Data sheet

Publisher Наука
Publication date 1985
Number of Pages 174
Bookbinding Softcover

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balta
SIA Mandariny

Meža prospekts 62 - 4
Jūrmala, LV-2010
Latvia
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