At the MAX Lab all artifacts are analyzed whole and non-destructively on the Thermo Scientific ARL Quant’X energy-dispersive x-ray fluorescence spectrometer, each piece having first been cleaned in an ultrasonic tank with distilled water for ten minutes. In attempting to provenance an artefact’s raw material, we compare its chemical signature with those of source samples run by the MAX Lab under the same conditions.
At present the lab has a large range of geological samples from obsidian sources across the Eastern Mediterranean and Mesoamerica, plus smaller quantities from the Western Mediterranean, Trans-Caucasia, Japan, Peru and the US.