Smectite Group from selected localities.
Hungary | |
| Kovács, I. et al. (2009): Guide to the Bakony-Balaton Volcanic Highland, Field Trip 1, 7th September 2009. MinPet2009 field trip booklet, 23 pp. |
| Kónya, P. and Szakáll, S. (2011): Occurrence, composition and paragenesis of the zeolites and associated minerals in the alkaline basalt of a maar-type volcano at Haláp Hill, Balaton Highland, Hungary. Mineralogical Magazine 75, 2869-2885. |