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

THE SOPRON MOUNTAINS These mountains occupying only a small area, are part of the Eastern Alps, and their central mass consists largely of Paleozoic Mesozoic metamorphic rocks. Depending on their mode of formation, mica schists are associated with different mineral assemblages, a typical example of which is sillimanite-andalusite, garnet, or kyanite. Fig. 75 TOURMALINE (6 cm sp) Fig. 76 GRANDALLITE (0.05 mm sph) Sopron Kópháza In cavities in quartz veins, an Alpine type of mineral association (quartz, albite, anatase, clinochlore) has been observed with well developed but minute crystals of each mineral. Rare earthand thorium-bearing minerals, e.g., florencite-(Ce), monazite-(Ce),