Bits of textile fabric, surviving as part of the corrosion products surrounding metal objects in archaeological contexts, are known as textile fabric pseudomorphs. The chemical and physical characterization of pseudomorphs on three bronze weapons from the Anyang phase of the Shang period was accomplished using x-ray diffraction (XRD), scanning electron microscopy (SEM), and energy dispersive x-ray analysis. The experimental procedures are indicated, including description of the equipment used. The mineral products are described. Fossilization occurs with some displacement from the burial soils; the exact correspondence to formation of metal deterioration products has not yet been determined. See also <i>AATA</i> <b>21-1752</b>.