Stephanie Hoffman & Steven M. Hoffman 
Gems, Crystals, and Precious Rocks [PDF ebook] 

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的封面 Stephanie Hoffman & Steven M. Hoffman: Gems, Crystals, and Precious Rocks (PDF)

People have long been captivated by the beauty of gems, from diamonds and sapphires to rubies and emeralds. Kids will be interested to know how these precious rocks form. Through this helpful book, young gem lovers will understand the crystal structure that many gems have and how beautiful rocks form in nature.

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语言 英语 ● 格式 PDF ● 网页 24 ● ISBN 9781448828494 ● 出版者 The Rosen Publishing Group, Inc ● 发布时间 2011 ● 下载 3 时 ● 货币 EUR ● ID 8669105 ● 复制保护 Adobe DRM
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