Mineralogy and petrogenesis of a Ba-Ti-Zr-rich peralkaline dyke from Å ebkovice (Czech Republic): Recognition of the most lamproitic Variscan intrusion

► First modern description of Variscan lamproite. ► New Si-rich variety of lamproite. ► Unique Ba-Ti-Zr-rich mineralogy. ► Origin by partial melting of metasomatized mantle.