English

Chips from the earth's crust : or, Short studies in natural science

"A series of short, interesting, and factual essays on many aspects of geology and mineralogy, including landslips, paleontology, gemology, economic minerals, precious metals, [...]. Ch 6 describes diamond and diamond mining, with several illustrations, Ch 7 is on amber and meerschaum, and Ch 8 describes agates from various deposits and the agate industry of Idar-Oberstein in Germany."-​-​Gemology by J. Sinkankas, entry no. 2379.

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