Rocks and Minerals of California

Well worth what I paid for it. This book has lots of information and would make a good reference for the Geology of California.The maps though, don't say what the major highways/roads are, so you'll need another map. I have the book Roadside Geology of North/Central California, and this book goes really well with it.In some ways, Rocks and Minerals of California I think is more useful, despite the missing road ID. The book has sections of counties (not all but most) and minerals found in those areas. Also, quadrangle information, township/range locations of minerals is listed.