Szakáll Sándor - Jánosi Melinda: Minerals of Hungary (Topographia Mineralogica Hungariae 4. Miskolc, 1996)

VELENCE MOUNTAINS AND THE SZABADBATTYÁN BLOCK Carboniferous granite makes up the central mass of the Velence mountains. Minerals formed during the main phase of crystallisation of the granite are the common ones - quartz, microcline, orthoclase, and plagioclase. Other minerals have also been detected including some containing rare earth elements. Fig. 56 ORTHOCLASE (5.5 cm xl) Fig. 57 FLUORITE (0.8 cm xl) Pókozd Pátka Very large crystals (ranging from a few centimeters to a decimetre in size), of the rock forming minerals crystallised during the pegmatitic stage but, in general, cavities are filled mainly