Did you know that Montana's Grasshopper Glacier is filled with millions of frozen locusts that got caught in a storm more than 300 million years ago? Or that gneiss is one of the world's oldest rock forms? One sample from Canada is more than FOUR BILLION years old! In this latest single-subject Weird But True!

book, readers will have a blast discovering that there's a lot more to rocks and minerals than meets the eye.

This book is perfect for budding geologists or any kid who likes to get to the bottom of things, such as how volcanoes work or the difference between fool's gold and actual gold. Prepare to be dazzled by our rockin' world!

你知道吗？蒙大拿州的蚱蜢冰川上冰冻着数百万只蚱蜢，它们在3亿多年前遭遇了一场绝望的暴风雪。片麻岩是世界上最古老的岩石形式之一。加拿大的一个岩石样本已经有40多亿年的历史了！世界上的岩石和矿物比我们看到的要多得多。

本书非常适合初出茅庐的地质学家，或者喜欢深入了解事物真相的孩子，如火山是如何运作的，以及黄铁矿和黄金之间的区别等。准备好被震撼吧！