Identification Topaz Identification Sheet The Mohs 8 reference mineral: hard enough to scratch quartz, with perfect basal cleavage and striated prismatic crystals.
Merchandise Galena Specimen Display Set A trio of hand-sized galena specimens showing classic cubic cleavage, with labels and a display stand.
Merchandise Mohs Hardness Test Kit A compact set of reference minerals and picks for running reliable scratch tests in the field or at the shop bench.
Member Benefits Annual Meeting Early Registration Members get early access and reduced rates for annual meeting field labs, clinics, and the exhibit hall.
Publications ARE Quarterly: Summer 2025 — Colorado Rhodochrosite A feature issue on rhodochrosite, Colorado's state mineral, with locality history and a field report from the 2025 annual meeting.
Field Guides Reading Rocky Mountain Geology in the Field A regional primer on the rock units, structures, and collecting settings members encounter across the Mountain West.
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.
Identification Galena Identification Sheet The primary lead ore: soft, very heavy, bright lead-grey metallic, with perfect cubic cleavage.
Identification Selenite (Gypsum) Identification Sheet A very soft sulfate you can scratch with a fingernail, forming clear bladed crystals, satin spar, and desert roses.
