opals

Readers learn the steps that must be taken and the technology that is used to find, cut, and polish opals.

Text and illustrations introduce opals, discussing how they are made, where they are mined, coloring, and more.

Mike Evans and his best friend, Shannon, pursue the dangerous Mr. Bones to Australia, where he has reanimated an Allosaurus and may be seeking more complete dinosaur skeletons to bring to life--but they discover that actually he and his sister have a more profitable scheme in mind.

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.