Gem testing
By: B.W. Anderson.
Contributors: Jobbins, E. Alan.
Edition: 10th ed. / rev. by E.A. Jobbins.
Publisher: Butterworths
Published: 1990
Place of publication: London [England]; Boston
Language: eng
Number of pages: 390
Subjects: Precious stones -- Testing.
Notes: Includes bibliographical references (p. 381-382) and index.