books in Science & Mathematics Titles released in 2019 in Rocks, Gems and Minerals

Firefly Guide to Minerals, Rocks and Gems by Rupert Hochleitner

Step-by-step Questions and Answers with detailed color photographs for easy identification. The Firefly Guide to Minerals, Rocks and Gems is designed for easy and reliable ...

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Gemstones: Identifying and using the world's most fabulous gems by Judith Crowe

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