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Mineralogy of the high-sulfidation Cu-Sb-Te Mavrokoryfi prospect (western Thrace, Greece)

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Mineral Deposit Research: Meeting the Global Challenge

Abstract

The high-sulfidation Mavrokoryfi prospect is located in the Petrota graben, a tectonic depression filled with calc-alkaline and shoshonic volcanic rocks of Oligocene age. Mineralization was introduced following a brecciation event of preore silicification, and is hosted within veins of massive silicification enveloped by alunitic advanced argillic alteration. Ore consists of pyrite, marcasite, famatinite, tetrahedrite (up to 15.5 wt% Ag), goldfieldite (up to 29.3 wt% Te) and traces of chalcopyrite. Al-phosphate-sulfate minerals, together with normal alunites, occur in both advanced argillic alteration and as gangue minerals, and are characterized by unusual Pb-enrichment (up to 24.7 wt% PbO in hinsdalites). Mavrokoryfi goldfieldite is among the purest in the world, with up to 3.7 apfu Te.

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Voudouris, P. (2005). Mineralogy of the high-sulfidation Cu-Sb-Te Mavrokoryfi prospect (western Thrace, Greece). In: Mineral Deposit Research: Meeting the Global Challenge. Springer, Berlin, Heidelberg. https://doi.org/10.1007/3-540-27946-6_365

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