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Tehnika
2014, vol. 69, br. 3, str. 409-415
jezik rada: engleski
vrsta rada: izvorni naučni članak
doi:10.5937/tehnika1403409S


Morfološke i hemijske karakteristike nanosnog zlata sa Mečkin Dola, lokalitet Borov Dol, istočna Makedonija
University Goce Delčev, Štip, Faculty of Natural and Technical Sciences, R. Macedonia

Sažetak

U radu su prikazani najnoviji rezultati šlihovske prospekcije zlata na lokalitetu Mečkin Dol. Istraživanja su pokazala da je veličina ispitivanih agregata zlata od 30 do oko 600 mikrona, kao i da je najčešći oblik njihovog pojavljivanja izometrično-nepravilni. Hemijski sastav zrna zlata ukazuje na njihovu heterogenost. Prosečni sadržaj je 74.15 - 99.32%, srebra od 0.3-24.68% i bakra od 0.04 do 11.06%. Ostale primese (Fe, Bi, Se, Te) su zastupljene u količini manjoj od 1%. Generalno, može se zaključiti da su ispitivani agregati zlata hemijski cisti, na nivou od 750 do 996.

Ključne reči

morfologija zlata; indeks spljeskanosti; hemiski sastav

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