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

BAKONY AND KESZTHELY MOUNTANS AND BALATON HIGHLANDS The Balaton Highlands are composed mainly of Paleozoic rocks. Here, notable mineral assemblages can often be found in Permian red sandstone which is coloured red by hematite. In some of the quarries near Balatonfüred and Balatonarács, several cms large sphe-rical concretions occur containing calcite, quartz, and some barite, and anhydrite (Fig. 61). In other quarries, traces of uranium and sul-fide mineralisation are found in the the sandstone. In phyllites of these highlands, traces of malachite are not uncommon. Fig. 61 CALCITE (8 cm sp) Balatonarács Triassic sedimentary rocks, mainly limestones and dolomites, form large parts of the Bakony and Keszthely mountains. Calcite is the main mineral filling fractures in these limestones, sometimes in 4-8