NEW OCCURRENCES OF HESSITE, PETZITE AND STUTZITE AT CORANDA-HONDOL OPEN PIT (CERTEJ GOLD-SILVER DEPOSIT, ROMANIA)

作者：Apopei Andrei Ionut^*; Damian Gheorghe; Buzgar Nicolae; Milovska Stanislava; Buzatu Andrei

来源：Carpathian Journal of Earth and Environmental Sciences, 2014, 9(2): 71-78.

• Certej
• Coranda-Hondol
• tellurides
• hessite
• petzite
• stutzite
• EPMA
• Raman spectroscopy

Au-Ag- and Ag-tellurides are widely abundant in the vast majority of the "Golden Quadrilateral" (Metaliferi Mts., Romania) ore deposits. Optical microscope observations, electron microprobe and mu-Raman analyses have been successfully carried out to identify Au-Ag-Te minerals from Coranda-Hondol open pit (part of Certej deposit, South Apuseni Mountains, in Romania). The identified tellurides are hessite (Ag2Te), petzite (Ag3AuTe-(2)) and stutzite (Ag5-x,Te-3, where x = 0.24-0.36) and they usually occur as patches (reaching 90-100 mu m in length) in galena, bournonite-seligmannite or at the contact between the last three minerals. In general, all the microanalytical data are stoichiometric with a slightly compositional variation in the case of hessite. The mu-Raman spectrum of stutzite shows a characteristic Raman fingerprint with a very strong band at 147 cm(-1). The broadness of the Raman band (147 cm(-1)) indicates a non-homogeneous distribution and, in conjunction with the strong heterogeneity observed under microscope, it suggests that the tellurides have

• 出版日期2014-5