Chemical Composition: XRF data from Artax 1
Alloy: Arsenical Bronze
Alloying Elements: copper, tin, arsenic
Other Elements: iron, nickel
K. Eremin, January 2014
Technical Observations: The patina is dark green with areas of lighter green. Metallic copper alloy shows through in some areas. Small chip losses on the edges are due to the brittle, mineralized layers of the surface. The tip is bent slightly to one side.
Under magnification, many areas of the blade show dendrites that indicate it was formed by casting. Parallel striations in several areas are the result of abrasive finishing of the surface. It is not clear if a lost-wax technique was used or if the molten metal was poured into a stone or clay mold. The decorative grooves are deep, narrow, very regular, and controlled. It is unlikely they were made by cold work after casting. They could have been made either in a wax model or in the surface of a stone or clay mold. The rivets are 8 mm long. The flattened rivet heads are the same on both sides and were hammered to tighten them to the handle from both sides.
Henry Lie (submitted 2012)