Turtmannite Image

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Turtmannite

Large Turtmannite Image

Mineral:

Turtmannite: (Mn,Mg)25.5[(V,As)O4]3(SiO4)3[AsO3]xO5-5x(OH)20+x

Comments:

Orange-brownish grains of turtmannite in matrix.

Location:

Pipji Glacier, Turtmanntal (Turtmann Valley), Wallis (Valais), Switzerland.

Scale:

Picture size 4 mm.

Copyright:

© Thomas Witzke / Abraxas-Verlag

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