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Fianel (Fianel Mine), Ausserferrera, Ferrera Valley, Hinterrhein Valley, Grischun (Grisons; Graubünden), Switzerland

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Latitude & Longitude (WGS84): 46° 32' 47'' North , 9° 27' 43'' East
Latitude & Longitude (decimal): 46.5463888889, 9.46222222222
Name(s) in local language(s):Fianel (Grube Fianel), Ausserferrera (Farera), Val Ferrera (Ferreratal), Hinterrheintal, Graubünden (Grisons; Grischun; Grigioni), Schweiz (Suisse; Svizzera)
Other regions containing this locality:The Alps, Europe

An old iron and manganese mine.
The Fianel Fe-Mn deposit is of syn-sedimentary to diagenetic origin, embedded in Triassic marble belonging to the Starlera nappe. It underwent a polyphase Tertiary metamorphism, climaxing under blueschist- to green-schist facies conditions (Nussbaum et al. 1998).

The lenticular ore body (60x60x20 m) of Fianel was exploited for iron until the end of 19th century.

Mineral List

40 valid minerals. 3 (TL) - type locality of valid minerals.

This page contains all mineral locality references listed on This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database. This locality information is for reference purposes only. You should never attempt to visit any sites listed in without first ensuring that you have the permission of the land and/or mineral rights holders for access and that you are aware of all safety precautions necessary.


- Brugger, J. and Berlepsch, P. (1996) Description and crystal structure of fianelite Mn2V(V,As)O7·2H2O, a new mineral from Fianel, Val Ferrera, (Graubunden, Switzerland). American Mineralogist 81: 1270-1276.
- Brugger J., Gieré R. (2000): Origin and distribution of some trace elements in metamorphosed Fe-Mn deposits, Val Ferrera, Eastern Swiss Alps. Canadian Mineralogist 38: 1075-1101.
- Lapis (2004): 29(5): 40 .
- Brugger J., Gieré R., Grobéty B., Uspensky E. (1998): Scheelite-powellite and paraniite-(Y) from the Fe-Mn deposit at Fianel, Eastern Swiss Alps. American Mineralogist 83: 1100-1110.
- Brugger, J. and Gieré, R. (1999): As, Sb, and Ce enrichment in minerals from a metamorphosed Fe-Mn deposit (Val Ferrera, Eastern Swiss Alps). Canadian Mineralogist 37: 37-52.
- Brugger, J., Berleepsch, P., Meisser, N., and Armbruster, T. (2003) Ansermetite, MnV2O6·4H2O, a new mineral species with V5+ in five-fold coordination from Val Ferrera, Eastern Swiss Alps. Canadian Mineralogist 41: 1423-1431.
- Brugger, J., Krivovichev, S., Meisser, N., Ansermet, S., and Armbruster, T. (2006): Scheuchzerite, Na(Mn,Mg)9[VSi9O28(OH)](OH)3, a new single-chain silicate. American Mineralogist 91: 937-943.
- Roth, P. & Meisser, N. (2013): Die seltenen Mineralien der Bündner Manganvorkommen. Schweizer Strahler 47 (3), 8-21 (in German and French).
- Nagashima, M., Armbruster, T., Kolitsch, U. and Pettke, T. (2014): The relation between Li <-> Na substitution and hydrogen bonding in five-periodic single-chain silicates nambulite and marsturite: A single-crystal X-ray study. American Mineralogist 99, 1462–1470.
Nagashima M. and Armbruster T. (2012): Palenzonaite, berzeliite and manganberzeliite: (As,V,Si)O4 tetrahedra in garnet structures: Mineralogical Magazine v. 76, pp. 1081-1097
Nagashima M. and Armbruster T. (2010): Saneroite: chemical and structural variations of manganese pyroxenoids with hydrogen bonding in the silicate chain: Eur. J. of Min. v. 22, pp. 393-402

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