Table 1. Comparison of results from SEM and XRF analyses of the Hudson Museum emerald (HM601) with published analyses of emeralds and emerald-bearing shales. HM601 has more elements in common with emeralds from a Russian source in the Urals than from any other source. However, many elements present in HM601 are not reported for Russian emeralds. If emerald-bearing shales are also considered, then the emerald shares many elements with Muzo, Colombia, including barium, zinc, rubidium and titanium.
Hudson Museum, The University of Maine, A Member of the University of Maine System