Gemstones

This revised edition explores the nature of gems, their beauty, rarity and durability, and the mineral properties that govern these qualities. It describes the ... » 

This revised edition explores the nature of gems, their beauty, rarity and durability, and the mineral properties that govern these qualities. It describes the most popular gemstones in detail and looks at how gem minerals form, where they are found and mined, and how they are identified. «