Multi-collector-inductively coupled plasma-mass spectrometry (MC-ICP-MS) is an analytical method for determining isotopic ratios. Ratios of Pb, Sr, and Nd isotopes, among others, can be highly diagnostic of geological formations from different regions, and thus the ability to measure these ratios in archaeological materials made from these geological materials is a powerful tracer for provenance studies. Since 2014, researchers at the Archaeometry Laboratory have been using MC-ICP-MS to address archaeological questions.