Biotite from selected localities.
Italy | |
| Lapis, 20 (7/8), 41-64+76; Guastoni, A., Cámara, F. and Nestola, F. (2010): Arsenic-rich β-Fergusonite-(Y) from Mount Cervandone (Western Alps, Italy): Crystal structure and genetic implications. American Mineralogist, 95, 487-494. |
Collected by Frank de Wit (1989-2000); Albertini, C. (1991) L'Alpe Devero ed i suoi minerali. Edizioni Grafica P.G.A., Dormelletto (Novara), 299 pp. | |
Switzerland | |
| No reference listed |
van der Burgt, A. & Cuchet, S. (2005): Neu: Gadolinit, Aeschynit und Synchisit vom Fleschsee, Binntal (Schweiz). Lapis 30 (4), 19-27, 50. (in German) | |
| Cuchet, S., van der Burgt, A. und Meisser, N. (2005): Chummibort, eine neue Fundstelle für Arsenmineralien im Binntal. Schweizer Strahler, Nr. 2, 19-29. (in German/French) |
Lengenbach Quarry, Fäld, Binn, Goms, Valais, Switzerland