Jul 25, 2015 The 250 20–70 km Iberian Pyrite Belt (IPB) is a Variscan metallogenic province in SW Portugal and Spain hosting the largest concentration of massive sulphide deposits worldwide. O., Pinto, A. 1991. The ore textures of the Neves Corvo volcanogenic massive sulphides and their implications for ore beneficiation. Mineralogical Magazine, 55.
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