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Breithorn-Roccia Nera ridge (Breithorn-Schwarzfluh ridge; Breithorn ridge), Champoluc, Ayas, Ayas Valley, Aosta Valley, Italy

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Location is approximate, estimate based on other nearby localities.
Latitude & Longitude (WGS84): 45° North , 7° East (est.)
Margin of Error:~3km
Name(s) in local language(s):Catena Breithorn-Roccia Nera (Catena del Breithorn; Chaîne du Breithorn et du Schwarzfluh; Chaîne du Breithorn; Breithorn-Schwarzfluh-Kamm; Breithornkamm), Champoluc, Ayas, Val d'Ayas, Valle d'Aosta (Vallée d'Aoste), Italia
Other regions containing this locality:The Alps, Europe

The Breithorn-Roccia Nera/Schwarzfluh ridge, or more simply Breithorn ridge, is located on the border between Aosta Valley (Italy) and Valais (Switzerland) and consists of five peaks: Breithorn Occidentale (Breithorn Occidental)/Breithornwestgipfel (4165 m), Breithorn Centrale (Breithorn Central)/Breithornmittelgipfel (4160 m), Breithorn Orientale (Breithorn Oriental)/Breithornostgipfel (4139 m), Gemelli del Breithorn (Zwillinge or Jumeaux du Breithorn)/Breithornzwillinge (4106 m), Roccia Nera (Roche Noire)/Schwarzfluh (4075 m). Schwartzruken is an alternative German name for Schwarzfluh.

The Italian side of this ridge is competely made of magnetite-bearing antigorite serpentinite (ophiolitic Zermatt-Saas nappe) with lenses and veins rich in reddish titanclinohumite, diopside, and olivine (forsterite). Rodingite bodies are known near the summit of Roccia Nera/Schwarzfluh and in the Breithorn area.

Minerals reported from the Swiss side are listed separately (see

Mineral List

8 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.


Dal Piaz, G.V. (1967) Le "granatiti" (rodingiti l.s.) nelle serpentine delle Alpi occidentali italiane. Memorie della Società Geologica Italiana, 6, 267-313.

Piccoli, G.C., Maletto, G., Bosio, P., Lombardo, B. (2007) Minerali del Piemonte e della Valle d'Aosta. Associazione Amici del Museo "F. Eusebio" di Alba, Ed., Alba, 607 pp.

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