Geisspfad Ultramafitit complex, Binntal, Wallis, Switzerland

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(text and pictures by Frank de Wit )

The Geisspfad Ultramafitit complex is large and contains many localities for minerals.
Some examples:

The contact Ultramafitit-Gneis at the Schwarzhorn, where we found very well (Natrolith-Mesolith-)Skolecit, Aktinolith (asbest-formed), Tremolith (asbest-formed), globular/spherical (!) Prehnit on Aktinolith (see: photo in Das Binntal und seine Mineralien, 1994, p.226) and Magnetit, Epidot, Apatit etc. The 'kluft' cavity we found was quite large and it took us a long time to empty it :-)

(pictures & specimen by Frank de Wit )

Obere Stafel / Schwarzhorn (Hessonit, Vesuvianit, Diopsid etc.)

The Preiswerkit-typelocality near the Geisspfadsee.

Grampielpass (Pargasit, Almandin etc.)

The former Tremolit-asbestos mine (Demantoit etc.)

Fleschhorn (Apatit, Epidot, Ilmenit etc.)

- a mineralisation with Chalkopyrit, Bornit, Cubanit, Djurleit, Pentlandit, Violarit, Malachit, Brochantit, Cuprit etc.
- etc.

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Also see: binn.strahlen.org, Paul Mestrom, Mineralienatlas,

Mindat.org on this location.

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