Iron Rock Hill in Cumberland, R.I., and Taberg in Småland, Sweden, are ancient formations of a rare eruptive rock with shared properties. The exhibit Shared Magma: An American and Swedish Collaboration on Sisterhood and Sister Ore celebrates the intersection of Late Proterozoic geology and a contemporary friendship between Swedish artist Kajsa G. Eriksson and Robin Wheelwright Ness, senior library technologist in digital preservation at Brown’s John Hay Library. Featuring original works created from iron-based pigments by Eriksson, Shared Magma explores how deep time, shared lifetimes, and the future entangle. Ritual is a 55-minute long experimental film by Kajsa G. Eriksson, Lena Berglin, and Maria Magnusson that explores the greed for energy as a social, material, and historical phenomenon. In Swedish with English subtitles.