Cover feature: a 12-page field guide to the sulfide mineral family, with a step-by-step streak and brittleness testing workflow for distinguishing pyrite, chalcopyrite, marcasite, and arsenopyrite. Sidebar: "Five times ARE members have been fooled, and what they learned." Member submissions include a remarkable pyrite sun specimen from an Illinois coal mine and a stalactitic pyrite cluster from a Nevada gold district. Also included: the results of the annual ARE gem show survey, which found that 34% of members have purchased treated material without being informed of treatment — down from 51% three years ago.
ARE Quarterly: Winter 2025 — Fool's Gold and Honest Minerals
A collector-focused issue on pyrite, marcasite, chalcopyrite, and the art of not getting fooled at gem shows.
ARE Editorial Board
Journal article