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The national gemstone quality examiner specify the textbooks: System gemology (2nd edition)(Chinese Edition) GUO JIA ZHU BAO YU SHI ZHI LIANG JIAN YAN SHI ZHI DING JIAO CAI : XI TONG BAO SHI XUE ( DI 2 BAN )
Geological Publishing House. hardcover. New. Ship out in 2 business day, And Fast shipping, Free Tracking number will be provided after the shipment.HardCover. Pub Date: 2006 Pages: 710 Language: Chinese in Publisher: Geological Publishing System gemology comprehensive systematic exposition of the gemological characteristics of the natural gem. described the focus of more than 50 kinds of common gem and more than 80 species the a scarce gem of physical nature. crystal structure. chemical composition and identification methods; natural gemstones manual optimization method and its identifying characteristics. principles. methods. and its id... Satisfaction guaranteed,or money back.
      [Bookseller: cninternationalseller]
Last Found On: 2017-10-12           Check availability:      Biblio    


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