Mineral: Quartz, (Chlorite Group)
Locality: Brenva Glacier, Veny Valley, Monte Bianco Massif (Mont Blanc Massif), Courmayeur, Aosta Valley (Val d'Aosta), Italy
Dimensions: 51 x 27 mm

Description: Back view. What seemed to be a first generation crystal has actually grown on a previous milky crystal (in turn covered by Chlorite). So the final crystal is a Quartz of third generation (not counting the Chlorite depositions).

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