A dramatic and striking cabinet combination specimen of a "mountain" of snow-white, sparkly, sponge-like, etched hyalite opal on layered quartz and sulfide matrix coated with beautifully contrasting, lustrous, pink rhodochrosite crystals from the Santa Rita Mine of Peru. This is a very showy and highly unusual large combination specimen, as the opal, in this case, does not fluoresce. Ex. David Ellis Collection.