This book seems targeted for 6th through 9th grade level kids. For those, it does a very good job explaining minerals when they are in crystal form, and thee joy of rock collectiong.

There are some minor technical details not quite correct. Most quartz does not form from veins but the visible crystals usually do. Quartz does grow over time but the growth ceases when growing conditions cease, usually long before the crystal is close to the earth's surface and nearly always when it is on the surface. But those details are not important to the theme of the book.

I recommend the book for those kids who might be interested in science or collecting things outdoors. ( )