Why did I love this book?
I can’t go past recommending this tiny book! Way back when I was a kid, my geologist cousin, Rene Schellekens, gave me a cardboard box full of carefully wrapped crystal specimens he’d collected on his travels plus a copy of Zim’s Guide to Minerals, Gems, and Rocks, and that fabulous little guidebook became my bible. I knew, by heart, every word and beautiful hand-drawn and coloured image adorning its pages—each mineral’s crystal system, colour, hardness, and other physical and chemical properties. I have to say, that gift of Zim’s Guidebook led me into a lifelong career of geological exploration into the world’s distant corners, and even into the authoring of my own books on the natural sciences.