A. Hyatt Verrill 
Precious Stones and Their Stories – An Article on the History of Gemstones and Their Use [EPUB ebook] 

A scientific history of gemstones and crystals around the world. Featuring the origin, symbolism, and uses of various precious stones.

This detailed article explores the history of gemology and crystallography and is an excellent read for those wishing to deepen their knowledge of the subjects. First published in 1939, Precious Stones and Their Stories was written by A. Hyatt Verrill, a respected nature historian.