The formation of amphibole cumulates beneath arc volcanoes is a key control on magma geochemistry, and generates a hydrous lower crust. Despite being widely inferred from trace element geochemistry as ...

Helium and neon solubilities were measured in six amphiboles that span a range of compositions (Supplementary Information and Table S1). The experiments consisted of gem-quality crystals that were ...

Granite colors range the spectrum from white to black to pink, but what makes a single rock type so variable? Here we will discover what makes each granite a different color, what that tells us about ...