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Gems
Claudia Martin
出版
Quarto Publishing Group UK
, 2018-02-21
主題
Juvenile Nonfiction / Science & Nature / Earth Sciences / Rocks & Minerals
Juvenile Nonfiction / Science & Nature / General
Juvenile Nonfiction / Science & Nature / Chemistry
Juvenile Nonfiction / Science & Nature / Earth Sciences / Geography
ISBN
1784939633
9781784939632
URL
http://books.google.com.hk/books?id=yPVqtAEACAAJ&hl=&source=gbs_api
註釋
Did you know that sometimes diamonds fall to Earth from space inside rocks called meteorites? Most gemstones are minerals which form in the ground as rock heated in the Earth cools down. As minerals grow, they make regular shapes called crystals. Discover more fabulous facts about gemstones in this comprehensive and accessible guide, which features agate, amber, amethyst, diamond, emerald, jasper, lapis lazuli, opal, ruby and sapphire. Packed with stunning photographs of bright, shiny gems, as well as more practical images of excavation and extraction, this book explains how different environments affect different gemstones and provides a colourful insight into the geology of our world.