Mineral: Quartz (variety smoky)
Locality: Triolet Glacier, Ferret Valley, Les Grandes Jorasses Massif, Courmayeur, Aosta Valley (Val d'Aosta), Italy
Dimensions: 43 x 26 mm

Description: A text-book crystal with a side-car. Nice and uniform color. A big extra X face, in the upper left part of the front face of the prism, has a small (triangular/trapezoidal) fold (X or S face?).

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