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HydrQztb. DnnschliffFoto eines hydrothermal entstandenen QuarzKristalls Oben Kathodolumineszenz unten Durchlicht Thin section of quartz from hydrothermal vein upper in CL and lower in transmitted light selfphotographed Macmille de Macmille original upload log de Leyo CommonsHelper page de HydrQztb Ukko bytes no Information