Author: Anderson, B.W.
Title: Gem Testing. Ninth Edition
Description: London 1980, (14,2 x 22 cm),434 pp. English tekst, numerous ills., hardcover ¶ Gem Testing has been regarded as the standard work on gem identification since it was first published in 1942. It is a practical manual designed primarily with the needs of the jeweller in mind, but it also serves as an excellent textbook for gemmology students and is widely consulted by professional and laboratory gemmologists.

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