Muscovite from Stockhorn, Gorner glacier area, Zermatt, Visp, Valais, Switzerland
Switzerland | |
| [var. Phengite] Scherrer, N. C., Gnos, E., & Chopin, C. (2001) A retrograde monazite-forming reaction in bearthite-bearing high-pressure rocks. Schweizerische Mineralogische und Petrographische Mitteilungen, 81(3), 369-378. |