About the Author

Robin Hansen is curator of minerals and gemstones at the Natural History Museum in London.

Reviews

"[A] worthy source of information to students of gemmology, mineralogy and all readers with an interest in ornamental stones."---Susan M. Stocklmayer, The Australian Journal of Mineralogy

"[A] welcome new addition to the class of 'pocket' gemstone reference guides."---Michelle Clark, The Australian Gemmologist

"A good, concise reference book."---Dr. Robet B. Cook, Rocks & Minerals