Opal-AN from selected localities.
Germany | |
| Rost, F. (1949): Contributions to Mineralogy and Petrology 1(5/6), 627-688. |
| Weiss: "Mineralfundstellen, Deutschland West", Weise (Munich), 1990 |
Germany | |
| Rost, F. (1949): Contributions to Mineralogy and Petrology 1(5/6), 627-688. |
| Weiss: "Mineralfundstellen, Deutschland West", Weise (Munich), 1990 |