Locality: La Florida mining area, Herrería-Valdáliga-Rionansa, Comarca Costa Occidental/Saja-Nansa, Cantabria, Spain
Description: I think the one above could be a negative "normal" rhombohedral face. The edge between it and the upper flat rhombohedral face is perpendicular to the maximum slope line (assuming c-axis in vertical position). The two trapezoid faces are my doubt. Maybe of the acute rhombohedron {021}? Maybe of an acute pyramid with high Miller indices? This pair of small trapezoid faces are also present in others vertex of the crystal in the same relative position.

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