mineralogy

Describes the formation and uses of the world's leading minerals.

Discusses the formation and mining of different kinds of rocks and the many minerals found within.

Describes in simple language the characteristics and uses of minerals and gems.

Explains what minerals are, where they come from, what their properties are, and how they are used.

Simple text and photographs describe what opals look like, where they are found, how they are used, what makes them valuable, and other related topics.

Simple text and photographs describe what turquoise looks like, where it is found, how it is used, what makes it valuable, and other related topics.

Simple text and photographs describe what rubies look like, where they are found, how they are used, what makes them valuable, and other related topics.

Simple text and photographs describe what emeralds look like, where they are found, how they are used, what makes them valuable, and other related topics.

Simple text and photographs describe what sapphires look like, where they are found, how they are used, what makes them valuable, and other related topics.