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Precious stones — Audiobooks
A Text-Book of Precious Stones for Jewelers and the Gem-Loving Public
by Frank Bertram Wade
The Chemistry, Properties and Tests of Precious Stones
by John Mastin
Shakespeare and Precious Stones
by George Frederick Kunz
Gem-Stones and Their Distinctive Characters
by George Frederick Herbert Smith
Leisure hours among the gems
by Augustus C. (Augustus Choate) Hamlin
A Hand-book of Precious Stones
by Meyer D. Rothschild
Gems in the Smithsonian Institution
by Paul E. Desautels
Beach Rambles in Search of Seaside Pebbles and Crystals
by John George Francis