This is a superb miniature of a very rare old US classic, in any kind of such aesthetic presentation and quality. The crystal is perched aesthetically on drusy, brassy yellow pyrite. It is a robust crystal with iridescent, bluish purple oxidation colors of the covellite, measuring fully 3.4 cm across. Slight contact/damage on the left edge does not materially detract from the quality of the specimen. Ex. Charlie Key collection (label from the 1960s) and Dr. Steve Smale collections. For my taste, this is as fine a miniature as I can imagine for a Montana covellite. It has color, form, contrast, and display style! Actually, it looks good from EITHER side, as well.