A rare pseudomorph from Laguna opens this remarkable agate halve—an unusual and seldom-seen structure for the deposit. Within the polished window, delicate mineral replacement preserves the ghostly shape of an earlier crystal form, now expressed through soft chalcedony and translucent layers that give the interior an almost sculptural appearance. The rarity of pseudomorphic development in Laguna material makes this formation particularly exceptional. Surrounding the central structure, medium banding flows gently through pale gray and misty white chalcedony. Subtle plume activity and sagenite textures radiate through portions of the stone, creating organic movement that contrasts with the sharp geometry of the replaced crystal form.