A textbook 'iron cross' pyrite twin from this now classic locality. The twin is well developed and equant, exhibiting the iron cross pattern prominently. The pyrite has a thin surface veneer of goethite. The specimen is in excellent condition and is complete all around. It is a superb, good-sized example of this type of twinning. Locality: Gachalá, Cundinamarca Department, Colombia Size: 3.0 x 2.9 x 2.8 cm (miniature)
eBay