 | | Journal (article/letter/editorial) | | native Bi, native gold, maldonite (Au2Bi), and jonassonite (AuBi5S4). The majority of the Bi-Te-S phases...Archaean, Viceroy and Mazowe Mines, Zimbabwe, Passagem de Mariana Mine, Brazil. Introduction FOR a long time...bismuth-tellurides-sulphide association. The work reports on the complex ore mineralogy, mineral chemistry, and the siting...Passagem de Mariana Mine in Brazil. Regional and mine geology Viceroy Mine is situated ~30 km east of Harare...which trends N S and dips vertically or steeply east, and the Diagonal Reef which has a NNE trend and |  | Ciobanu, Cristiana L., Birch, William D., Cook, Nigel J., Pring, Allan, Grundler, Pascal V. (2010) Petrogenetic significance of AuāBiāTeāS associations: The example of Maldon, Central Victorian gold province, Australia. Lithos, 116 (1) 1-17 doi:10.1016/j.lithos.2009.12.004 | Journal (article/letter/editorial) | | gold-bearing minerals (maldonite, native gold, jonassonite, and aurostibite) and a range of sulphotellurides...AuāBiāTe and hint at crystallisation from melts. The complex associations include symplectites of gold and bismuth...composition approximating to Bi3(Te,S)2 and jonassonite). The complexity of such assemblages is also...maldonite Ā± hedleyite; (2) Bi-sulphotellurides + jonassonite, and decomposition of maldonite (gold + bismuth);...bismuthinite + gold from decomposition of maldonite or jonassonite. The last stage is coincident with chloritisation |  | Ciobanu, Cristiana L., Cook, Nigel J., Pring, Allan, Brugger, JoĆ«l, Danyushevsky, Leonid V., Shimizu, Masaaki (2009) āInvisible goldā in bismuth chalcogenides. Geochimica et Cosmochimica Acta, 73 (7) 1970-1999 doi:10.1016/j.gca.2009.01.006 | Journal (article/letter/editorial) | | volcanogenic massive sulļ¬de (VMS) systems, Escanaba Trough, Southern Gorda Ridge (ToĢrmaĢnen and Koski, 2005), as...Au content in these minerals, which all display complex crystal-structural modularity. The genetic connotations...Bichalcogenides. Structural modularity (e.g., Lima de Faria et al., 1990; Makovicky, 1997, 2006) is a formalism...that: (i) allows classiļ¬cation of minerals with complex chemistry into series/ groups of related compounds...tetradymite group (c) and aleksite series (d). Note van de Waals gaps and metallic bonds at XāX and BiāBi contacts |  | Acosta-Gongora, P., Gleeson, S. A., Samson, I. M., Ootes, L., Corriveau, L. (2015) Gold Refining by Bismuth Melts in the Iron Oxide-Dominated NICO Au-Co-Bi (Ā CuĀ W) Deposit, NWT, Canada. Economic Geology, 110 (2) 291-314 doi:10.2113/econgeo.110.2.291 | Journal (article/letter/editorial) | | X1A 2L9 4 Geological Survey of Canada, 490 rue de la Couronne, QuĆ©bec, QC, Canada G1K 9A9 Abstract...The NICO Au-Co-Bi (Ā±CuĀ±W) deposit is within the southern Great Bear magmatic zone (Figs. 1, 2A) and has...development of a steeply dipping fabric across the southern Great Bear magmatic zone and predates the emplacement...Undifferentiated granitoids east of the Wopmay fault zone Undifferentiated supracrusal rocks east of Wopmay fault...showing X Xā 0 X N228 Xā Heterolithic breccia Southern Breccia Siltstone Giant quartz vein Marian |
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