Mineral: Quartz (variety faden), Chlorite (Group)
Locality: Triolet Glacier, Ferret Valley, Les Grandes Jorasses Massif, Courmayeur, Aosta Valley (Val d'Aosta), Italy
Dimensions: 61 x 37 mm

Description: Parallel extra X faces. Although usual on gwindel, they are scarce on faden.

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