Dictionary of gems and gemology
Subtitle: including ornamental, decorative and curio stones (excluding diamonds).
Contributors: Shipley, Robert M. 1887-
Edition: 6th ed., rev. and updated by the staff of the Gemological Institute of America.
Publisher: Gemological Institute of America
Published: 1974
Place of publication: Santa Monica
Language: eng
Number of pages: 230
Subjects: Precious stones -- Dictionaries.