Vote for your favorite mineral in #MinCup26! - Bournonite vs. Vesuvianite
Cogwheels of bournonite are up against colourful vesuvianite.
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Tourmaline from
Mittal-Hohtenn railway tunnel, Mittal, Steg-Hohtenn, Westlich Raron, Valais, Switzerland


Locality type:Tunnel
Classification
Species:'Tourmaline' (not an IMA approved species)
Formula:AD3G6(T6O18)(BO3)3X3Z
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Tourmaline data
Locality Data:Click here to view Mittal-Hohtenn railway tunnel, Mittal, Steg-Hohtenn, Westlich Raron, Valais, Switzerland
Data Identifiers
Mindat Occurrence Record ID:1479948
Long-form Identifier:1:3:1479948:4
GUID (UUID V4):0
Nearest other occurrences of Tourmaline
13.5km (8.4 miles) ⓘQuartzite quarries, Embd, Visp, Valais, Switzerland
19.2km (11.9 miles) ⓘSimplon Railway tunnel (north section), Termen, Brig, Valais, Switzerland
21.3km (13.2 miles) ⓘBrunegg pass, Turtmann Valley, Turtmann-Unterems, Leuk, Valais, Switzerland
27.9km (17.3 miles) ⓘBlau lake, Saflisch Valley, Grengiols, Östlich Raron, Valais, Switzerland
31.5km (19.6 miles) ⓘChummibort, Grengiols, Östlich Raron, Valais, Switzerland
31.5km (19.6 miles) ⓘGibelmatte, Mätti Valley, Grengiols, Östlich Raron, Valais, Switzerland
31.6km (19.6 miles) ⓘBinna tunnel, Binn, Goms, Valais, Switzerland
33.5km (20.8 miles) ⓘReckibach, Binn, Goms, Valais, Switzerland
34.2km (21.3 miles) ⓘChriegalp, Chriegalp valley, Binn, Goms, Valais, Switzerland
34.5km (21.4 miles) ⓘFlesch lake, Binn, Goms, Valais, Switzerland
References
Schad, K.-H. (1989): Die Mineralien des Mittalgrabentunnels VS. Schweizer Strahler 8(7), 334-350. (in German and French)
 
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