This is a true Midwestern midwave UV fluorescent mineral treasure from the Sweetwater Mine, Ellington, Reynolds Co., Missouri. Featuring numerous, brightly fluorescent, modified calcite scalenohedrons on a limestone matrix with calcite druse and brassy chalcopyrite crystals (not fluorescent). As shown below, the large calcite crystals fluoresce a bright pastel pink color under mid wave UV (302 nm) and the calcite druse shows a contrasting moderate off-white response. Interestingly, this specimen is not significantly fluorescent under short wave or long wave UV. The size of this piece is 16.6 cm x 12.9 cm x 10.8 cm and it weighs 1,110 grams.
Under mid wave UV (302 nm), the large calcite crystals show beautiful, pastel pink, fluorescence while the calcite druse provides a contrasting moderate off-white response.
Same specimen shown under visible light. Numerous waxy, pale honey-colored, modified calcite scalenohedrons on a grey limestone matrix with calcite druse and brassy chalcopyrite crystals.