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Extreme Rocks & Minerals! Q&A

Hardcover

Some minerals are extremely softÑas soft as baby powder. Other minerals are extremely hardÑlike diamonds, the hardest natural substance in the world. Some rocks were once extremely hotÑthey were made from magma deep under the earth.

Do you know that you use minerals when you look in a mirror, brush your teeth, or sprinkle salt on your French fries? Find out all the answers about rocks and mineralsÑeven how to study them yourselfÑwhen you dig in to Extreme Rocks & Minerals! Q&A.

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