The rock & gem book: ...and other treasures of the natural world
معرفی کتاب «The rock & gem book: ...and other treasures of the natural world» نوشتهٔ Smithsonian Institution.;Green, Dan، منتشرشده توسط نشر DK Publishing در سال 2016. این کتاب در فرمت pdf، زبان انگلیسی ارائه شده است.
Displays more than 1,200 full-color specimens, from sapphires and rubies to silver and pearl, revealing the unique qualities of each material and how it is used in industry, architecture, art and science. Includes precious metals, rare fossils, tiny gemstones and giant shells.
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