Rocks and Minerals (Speedy Study Guide). Speedy Publishing
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There are literally hundreds of different types of rocks and minerals. A study guide will help you differentiate between the many different types. Avid rock hounds and novice collectors alike will find a study guide helpful for identification of rocks and minerals. Pictures of the many different types will prove very helpful for classifying. A study guide will also present new facts that will be helpful and interesting to learn.
