On a basaltic matrix with a white, druse of chalcedony, are emplaced, pearlescent, stilbite crystals, to 2.5 cm across. There is also a single, light, mint- green, fluorapophyllite crystal, with good luster and translucence, which measures 7.0 cm in length. I love this new find, with unusual dramatic and isolated apophs having such a stark termination, and bought much of it!