Gemstones

Overview

How long does it take for a diamond to form?

A natural diamond forms over the course of millions of years.

Why some gemstones are more valuable than others;

A timeline, photos-and how gemstones are formed;

Surprising True facts that will shock and amaze you!

An introduction to gem stones, ...

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Overview

How long does it take for a diamond to form?

A natural diamond forms over the course of millions of years.

Why some gemstones are more valuable than others;

A timeline, photos-and how gemstones are formed;

Surprising True facts that will shock and amaze you!

An introduction to gem stones, discussing the different types of stones, where they are found, and how they are made.

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Editorial Reviews

Children's Literature - Carollyne Hutter
One of these statements is true: diamonds are the rarest of all gemstones; sapphires can be blue, yellow, green, purple, pink or colorless. To find out which one is true, the reader explores the topic of gemstones. The book is organized into five chapters: dazzling diamonds and elegant emeralds; out of the earth; animal, vegetable, or mineral; a rainbow of colors; and useful gems. It explores such topics the Mohs scale of hardness, how gems form, gems that comes from organic matter (such as pearls and amber), and cutting diamonds. Glossy colorful photographs capture the beauty of gemstones. There are special sections on birth stones and weighing gemstones. The book closes with a list of true statistics about minerals, a list of books for further information, and a glossary. At the end of the book it tells which opening statement is true. As part of the "A True Book" series this title can be used in science and geology units either alone or with other geology books in the series. Reviewer: Carollyne Hutter
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Product Details

  • ISBN-13: 9780531262511
  • Publisher: Scholastic Library Publishing
  • Publication date: 9/1/2012
  • Series: A True Book
  • Pages: 48
  • Sales rank: 717,649
  • Age range: 8 - 12 Years
  • Product dimensions: 7.90 (w) x 6.90 (h) x 0.60 (d)

Table of Contents

1 Dazzling Diamonds and Elegant Emeralds: What is the difference between a gemstone and a common rock? 7

2 Out of the Earth: How are gemstones formed? 15

3 Animal, Vegetable, or Mineral?: Does a gem have to be a mineral? 21

The Real Thing?: Can a gemstone be created in a laboratory? 28

4 A Rainbow of Colors: Why are rubies red and emeralds green? 31

5 Useful Gems: What everyday tasks do gems and their minerals accomplish? 39

True Statistics 44

Resources 45

Important Words 46

Index 47

About the Author 48

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