Mineral chemical characterization of kamafugites from Pleistocene Cupaello volcano (Italy)

The Cupaello volcano (~640 kyr) belongs to the Intra Apennine Province (IAP; central Italy). The monogenetic activity emplaced a single lava flow, exhibiting a kamafugitic composition (primary kalsilite-bearing volcanic products) and pyroclastic deposits. Cupaello kamafugite are ultrapotassic, ultracalcic, ultrabasic and SiO2-undersaturated. Such lavas show a peculiar paragenesis, represented by: kalsilite, melilite, phlogopite, clinopyroxene, calcite, olivine and glass, plus accessory minerals (opaque phases, perovskite, monticellite, apatite, wollastonite, titanite, baryte, chlorite and khibinskite). This dataset constitutes a mineral chemical characterization of principal and accessory phases and glass from Cupaello kamafugite samples, aiming to shed lights on their petrogenesis (as the involvement of crustal limestone digestion during the magma ascent to the surface).