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Iceland | |
| Betz, Volker (1981) Famous mineral localities: Zeolites from Iceland and the Faeroes. The Mineralogical Record, 12 (1) 5-26 |
| Lahan, M. M. (2012). Geological and geothermal mapping in the Trölladyngja field, SW-Iceland. United Nations University Geothermal Training Programme Report 19 |
- Grímsnes- og Grafningshreppur
| Kristmannsdottir, H., Tomasson, J. (1978) Zeolite zones in geothermal areas in Iceland. In Natural Zeolites - Occurrence, Properties, Use. Pergamon Press, Oxford. p.277-284. |
| Knut Edvard Larsen (2023) Collection. |
| Tschernich, Rudy W. (1992) Zeolites of the World. Geoscience Press, Inc., Phoenix, Arizona. 567pp. |
| Flink, Gustav (1886) Mineralogiska notiser I. 10. Lievrit från Thyrill, Island [Mineralogical notices I. 10. Lievrit from Thyrill, Iceland]. Bihang til Svenska vetenskapsakademien handlingar, 12 (3) 44-46 |
Eyrarfjall Mountain, Kjósarhreppur, Capital Region, Iceland