Visions of glittering gold come to mind when you think of Northern California's minerals'but there is so much more. There is jade in qualities rivaling that from Wyoming or Burma; beautiful pink rhodonite; and possibly the most diverse variety of gem obsidian in the country, if not the world. In this up-dated second edition detailed text and maps lead rockhounds to over 76 locations where you can collect 60 varieties of Northern California's mineral and fossil treasures. There are full-color specimen photos to inspire your collecting efforts, and black and white photos to help locate sites as diverse as the minerals themselves, including pine covered mountains, barren deserts and beautiful beaches.From popular and commercial sites to those little-known, out of the way places, this is the most complete guide to gem, fossil and mineral collecting in Northern California.