Cally Oldershaw

A handy guide identifying over 170 types of the world's gemstones with beautiful color photography taken from the Smithsonian Institution's archives. 'Gem Gemstones' is an indispensable guide for amateurs and enthusiasts alike. This pocket-sized book explores the fascinating history of ornamental stones, discussing their different social and cultural meanings and monetary values through the ages. Each page features specific details about the crystal...

A fascinating, richly illustrated guide to the identification and use of gemstones. The introduction describes the geology, chemistry and properties of gems in clear and accessible terms. The main section supplies complete descriptions of a wide range of gems.

"From molten-hot rock and smouldering volcanoes to icy glaciers and bubbling springs, this . . . compendium unlocks the mysteries of our living, breathing planet Earth"--BTCat.

Provides a close-up view of various types of rocks and minerals and describes their origins, the effects they have on the landscape, and how they have been used.