Gem - Stones / by G. F. Herbert Smith ; revised by F. Coles Phillips - 13 th.ed. - London : Methuen & Co. Ltd., 1958 - 560 p.: some col, ill.; 22 cm
First published in 1912 under title: Gem-stones and their distinctive characters
Includes bibliographical references ( p.: 532 - 543 ), indexs ( p. 547 - 560 )
--Precious Stones
549 SMI