A new occurrence of argentopentlandite and gold from the Au-Ag-rich copper mineralisation in the Paliomylos area, Serbomacedonian massif, Central Macedonia, Greece

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Published: Jan 1, 2001
DOI: https://doi.org/10.12681/bgsg.17154
Keywords:
silver-gold-copper mineralisation argentopentlandite gold fluid inclusions Serbomacedonian massif Greece
V. MELFOS
Department of Mineralogy, Petrology. Economic Geology, Faculty of Geology, Aristotle University of Thessaloniki
M. VAVELIDIS
Department of Mineralogy, Petrology. Economic Geology, Faculty of Geology, Aristotle University of Thessaloniki
K. ARIKAS
Mineralogisch-Petrographisches Institut, Universitôt Hamburg
Abstract

The Au-Ag-Cu mineralisation in the Paliomylos area is associated with quartz segregations and pegmatoids in the form of boudinaged bodies. The Au, Ag and Cu contents in the ore bodies reach 6.8 ppm, 765 ppm and 0.80 wt%. The ore minerals consist of pyrite, chalcopyrite, sphalerite, pyrrhotite, galena, bismuthinite, argentopentlandite, gersdorffite, cobaltite, aikinite, hessite, native bismuth and gold. Pentlandite contains significant amounts in Ag (13.15 wt%), Au (1.59 wt%) and PGM, demonstrating a formula of Fe5.37 Ni2.56 Ag1.03 Ir0.03 S8.01. On the basis of geological, textural and chemical data, the mineralisation in the studied area was formed under high temperatures.

Article Details
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  • Geochemistry and Ore Deposit Geology
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