Fig. 6From: Bristen granite: a highly differentiated, fluorite-bearing A-type granite from the Aar massif, Central Alps, SwitzerlandBSE texture images, sample KB1349: a Biotite replaced by chlorite, muscovite, ilmenite and accessories including zircon and various niobates, b chlorite—albite vein (Fig. 4d) through coarse mesoperthiteBack to article page