Garronite-Ca from Germany
Germany | |
| Tschernich, Rudy W. (1992) Zeolites of the World. Geoscience Press, Inc., Phoenix, Arizona. 567pp. |
| Wittern, Artur (2001) Mineralfundorte und ihre Minerale in Deutschland (1st ed.) Schweizerbart, Stuttgart. |
| Hentschel, Gerhard (1983) Die Mineralien der Eifelvulkane (1st ed.) Christian Weise Verlag, Munich. |
Kappiger Ley, Wehr, Brohltal, Ahrweiler, Rhineland-Palatinate, Germany