Properties of gem varieties of minerals, a compilation of the data of gemological authorities.
By: Printed by order of the Board of Governors of the Gemological Institute of America in memory of its second president, Edward Wigglesworth.
Contributors: Bandy, Mark C.
Published: 1948
Place of publication: [Los Angeles]
Language: eng
Subjects: Precious stones.
Other titles: Gem varieties of minerals.
Notes: After the author's death, the work was completed by Mark C. Bandy, Richard T. Liddicoat and Robert M. Shipley, all of the staff of the institute.