Field Guides Five-Minute Field Tests: Streak, Magnetism, and Heft An educator packet of fast, cheap, decisive identification tests — streak plate, pocket magnet, and hand-weighing — with classroom demos.
Field Guides Crystal Systems and Crystal Habits A pocket reference to the seven crystal systems and the everyday habits—cubic, prismatic, botryoidal, bladed—you actually see on specimens.
Field Guides Fluorescent Minerals Under Ultraviolet Light How and why some minerals glow under UV, with a safe workflow for using shortwave and longwave lamps in the field and at displays.
Field Guides Field Guide to Common Minerals A pocket reference to the rock-forming and collectible minerals Rockies meet most often, organized by the properties you can test in the …
