Chemical Composition: XRF data from Tracer
Alloy: Mixed Copper Alloy
Alloying Elements: copper, tin, antimony
Other Elements: lead, iron, nickel, silver, arsenic
K. Eremin, January 2014
Chemical Composition:
Lead Isotope Analysis (Pb, 0.09%):
Pb206/Pb204, 18.85730; Pb207/Pb204, 15.70711; Pb208/Pb204, 39.15501; Pb, 207/Pb206, 0.83295; Pb 208/Pb206, 2.07638; Pb208/Pb207, 2.49282
P. Degryse
Chemical Composition: ICP-MS/AAA data from sample, Copper-Tin-Antimony Alloy:
Cu, 90.43; Sn, 6.53; Pb, 0.09; Zn, 0.002; Fe, 0.02; Ni, 0.07; Ag, 0.04; Sb, 2.43; As, 0.37; Bi, less than 0.025; Co, 0.019; Au, less than 0.01; Cd, less than 0.001
J. Riederer
Technical Observations: The patina is black and dark green and features brown burial accretions. The surface is well preserved. The toggle is a solid cast, probably from a model made directly in the wax. The incised lines and indentations on the bottom of the loop were made by cold working.
Henry Lie (submitted 2012)