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σ-type porphyroclast of K-feldspar in the strongly sheared augengneisses of the Aiguilles Rouges Massif. Dextral sense of shear. PhotoID821

σ-type porphyroclast of K-feldspar in the strongly sheared augengneisses of the Aiguilles Rouges Massif. Dextral sense of shear. PhotoID821

Photograph: Matteo Simonetti