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Massa Gorge pressure duct, Massa Gorge, Bitsch, Brig, Wallis (Valais), Switzerland

Molybdenite
Massa Gorge pressure duct, Massa Gorge, Bitsch, Brig, Wallis, Switzerland

Photo: Rob Lavinsky

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Massaschlucht-Druckschacht, Massaschlucht, Bitsch, Brig, Wallis (Valais), Schweiz (Suisse; Svizzera)

A high pressure duct, feeding the hydroelectric power plant run by the Electra Massa company. In 1965, during its construction, a cleft with huge rock crystals was discovered. The largest specimens were destroyed due to the use of explosives. Those that could be saved did still reach lengths of up to one meter, though. The slender crystals often included byssolite, halite, calcite and various fluids.

Ref.:
- Stalder, H. A., de Quervain, F., Niggli, E., Graeser, S. (1973): Die Mineralfunde der Schweiz, p. 123-124
- Stalder, H. A., Wagner, A., Graeser, S. and Stuker, P. (1998): "Mineralienlexikon der Schweiz", Verlag Wepf & Co. (Basel)

Mineral List

'Amphibole Group
var: Byssolite'
Calcite
'Chabazite'

'Chlorite Group'
Gypsum
Halite

'K Feldspar
var: Adularia'
Quartz
var: Rock Crystal
'Tourmaline'

9 entries listed. 3 valid minerals.

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