I live in Hungary and collect minerals for 20 years. In the beginning I collected minerals based on Nickel-Strunz's system. In 2005, when I first visited the zeolite occurrences of the Balaton Highland (Hungary) my interest turned to zeolites. Since then I only collect zeolite minerals.

My PhD theme was the cavity filling minerals in the basalt from Bakony-Balaton Highland Volcanic Field (BBHVF). During the research I examined more than 150 zeolite samples (e.g. analcime, chabazite, gismondine, gmelinite, gonnardite, mesolite, natrolite, offretite, phillipsite, scolecite, thomsonite) using WDS method. Among zeolite mineral series this work was the first to determine by chemical analyses the following mineral species: Philipsite-Na, Chabazite-K, Chabazite-Na, Gmelinite-Ca and Gonnardite-Na in Hungarian samples and Phillipsite-K in BBHVF. Chabazite-Mg was identified as a new mineral species with italian researchers.

I collect and sometimes buy zeolites from thumbnail to large cabinet size. My zeolite collection contains around 700 specimens. The most of minerals are from Balaton Highland locations. But I have zeolites from famous international localities (e.g. Iceland, Reunion Island, Scandinavia, Mali, Nova Scotia, Faroe Island, USA etc). My collection includes also some rare zeolites, for example kalborsite, nabesite, tvedalite, perlialite, hsianghualite etc.