Argentum is the Latin word for silver. In the archaic science of alchemy, the symbol for argentum was interchangeable with the astrological symbol for the moon. The exquisite luminescence of the Argentum Series is achieved through a proprietary technique that coats the inside of the vessel with a layer of color. When light passes through the transparent surface and strikes the underlying color, it is reflected back to the surface again, creating an optical effect that is reminiscent of the sheen of silver, or moonlight.