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About this book
Biography
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About this book
Describes the geology, chemistry and properties of gemstones in clear and accessible terms. An important feature of the book is a comprehensive visual identification key.
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Biography
Cally Oldershaw lives in St Albans. She is the author of DK's Gemstones which sold over 5 million copies worldwide. Cally is a Fellow of the Gemmological Association of Great Britain (GAGTL) and a member of the curatorial team at the National History Museum in London.