Chemical Composition: ICP-MS/AAA data from sample, Copper:
Cu, 98.79; Sn, less than 0.25; Pb, less than 0.04; Zn, 0.002; Fe, 0.16; Ni, 0.05; Ag, 0.08; Sb, less than 0.05; As, 0.92; Bi, less than 0.025; Co, less than 0.01; Au, less than 0.01; Cd, less than 0.001
J. Riederer
Chemical Composition: XRF data from Artax 1 and Tracer
Alloy: Copper
Alloying Elements: copper
Other Elements: iron, arsenic
K. Eremin, January 2014
Technical Observations: The patina is dark green and features areas of raised lighter green. Some raised brown burial accretions are present. Lighter orange areas are bright metal with pitting below the original surface. Many areas of the surface are very well preserved. The pitted areas where corrosion is lost may be the result of a chemical cleaning procedure.
No evidence of dendrites is present, and no hammer impressions are visible. However, judging solely from the shape, the object was probably cast in a rod shape and then hammered to shape its square cross-section.
Henry Lie (submitted 2012)