Val di Preda Rossa, Val Masino, Sondrio, Lombardia, Italia
Preda Rossa Valley is a mineral rich area hosting at least four main worthwhile paragenesis:
- Garnet (& Beryl) bearing pegmatites, intruded both in the Masino-Bregaglia intrusives and in the surrounding rocks (e.g Serpentinites)
- Spinel - and "Humite group" bearing marbles.
- Zeolite-bearing rodingites (with a mineral paragenesis modified by contact metamorphism).
- (Bi) - Mo ore bearing quartz veins in the "Serizzo" diorite
Mineral List
6 entries listed. 5 valid minerals.
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References
- Bedogné, F., Maurizio, R., Montrasio, A., Sciesa, E. (1995):
I minerali della provincia di Sondrio e della Bregaglia Grigionese.
Val Bregaglia, Val Masino, Val Codera e Valle Spluga. Bettini Ed.,
Sondrio, pp 162 and 235
- IVM Magazine
Bulletin of the Institute of Mineralogy "F. Grazioli" 1 / 2008
Reporting the discovery of Stevens in Val di Preda Rossa resulting.
analysis by Athos Callegari Department of Earth Sciences, University
of Pavia
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