The Quarries and Minerals of the Dayton Road
Opaque blue-green beryl crystals up to 4 inches diameter can be found in the quarry walls. Bright blue-green hyalite opal has been found here and is highly prized by collectors (Fig. 22). Almandine, autunite, columbite, elbaite, gahnite, lepidolite samarskite-Y, spessartine, and uraninite has been reported from this quarry.