The largest part of the Tux Alps comprises low grade metamorphic rocks, that are classified as part of the Innsbruck quartz-phyllite complex (quartzitic phyllite slate). Next to this zone of Paleozoic rocks to the south there is a localised zone of various Mesozoic rocks, the so-called Tarntal Mesozoic. This complex zone belongs, like the quartz-phyllite zone, to the tectonic unit of the Lower Eastern Alps. Amongst the rocks of Tarntal Mesozoic may be found dolomite and limestones that are the basis of rock faces (Kalkwand and Torwand) in the area of the Wattentaler Lizum. On the other hand, there are also elements of the former ocean bed, in the shape of serpentinite that make up the Lizumer Reckner. The southern perimeter of the Tux Alps belongs to the tectonically deeper-lying Penninic Hohe Tauern window. Here in the Tux Alps these are mainly rocks of the Penninic Glockner Nappe (calc-schist envelope of the Tauern). The northeasternmost corner of the Tux Alps, from the area of Schwaz to Fügen im Zillertal, belongs to the Upper Eastern Alpine greywacke zone, which consists of Paleozoic rocks. Silver and copper were once extensively mined in this zone in the area around Schwaz.