|
Angola | |
|
| M. R. Portugal V. Ferreira, Heulandite do Cabo Ledo, Angola, Memórias e Notícias No. 64, Publicaçõs do Museu e Laboratório Mineralógico e Geológico da Universidade de Coimbra e do Centro de Estudos Geológicos, 1967. |
|
Italy | |
|
| Bianchi, M., and Parlato, G. (2020) I minerali delle vulcaniti e dei basalti di Pachino (SR). Rivista Mineralogica Italiana, 44, 2 (2-2020), 124-130.
Colacicchi, R. (1963) Geologia del territorio di Pachino (Sicilia meridionale): Geologica Romana, 2, 343-404 |
|
Ivory Coast | |
|
| Pouclet A. et al. (2004) C.R.Geoscience 336, 9-17 |
|
Morocco | |
|
| Pršek, J., Dumańska-Słowik, M., Powolny, T., Natkaniec-Nowak, L., Toboła, T., Zych, D., & Skrepnicka, D. (2020) Agates from Western Atlas (Morocco)—Constraints from Mineralogical and Microtextural Characteristics. Minerals, 10(2), 198. |
|
Namibia | |
|
| Cairncross, B. & Bahmann, U. (2007): Zepterquarz und Prehnit vom Tafelkop, Goboboseb-Berge, Namibia. Lapis 32 (6), 37-43. (in German) |
|
Portugal | |
|
| Pedro Alves collection and analytical data. |
|
Spain | |
- Santa Cruz de Tenerife Province
| Journal of Non-Crystalline Solids 323 (2003) 27–33 |
|
Zimbabwe | |
|
| Wolfgang Hampel, October 2014 |
|
| Wolfgang Hampel, site visit June 2104 |
|
| Moore, A. (2013): The Geology of the Victoria Falls Area, Field Excursion Guidebook.- Geol. Soc. Of Zimbabwe, Annual Summer Symposium Victoria Falls, 28-30 November 2013, 15 pages + app. |
Terra do Baptista gabbro outcrop, Porto da Cruz, Machico, Madeira Island, Madeira, Portugal