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Discovery of Se-rich canfieldite, Ag8Sn(S,Se)6, from the Shuangjianzishan Ag–Pb–Zn deposit, NE China: A multimethodic chemical and structural study

Published online by Cambridge University Press:  08 October 2018

Degao Zhai
Affiliation:
School of Earth Sciences and Resources, China University of Geosciences, 100083, Beijing, China
Luca Bindi*
Affiliation:
Dipartimento di Scienze della Terra, Università di Firenze, Via La Pira 4, I-50121, Firenze, Italy
Panagiotis C. Voudouris
Affiliation:
Department of Mineralogy-Petrology, National and Kapodistrian University of Athens, 15784, Athens, Greece
Jiajun Liu
Affiliation:
School of Earth Sciences and Resources, China University of Geosciences, 100083, Beijing, China
Stylianos F. Tombros
Affiliation:
Department of Geology, University of Patras, Rion, 26500, Patras, Greece
Kuan Li
Affiliation:
School of Earth Sciences and Resources, China University of Geosciences, 100083, Beijing, China
*
*Author for correspondence: Luca Bindi, Email: luca.bindi@unifi.it

Abstract

During a study of the ore minerals belonging to the recently discovered Shuangjianzishan Ag–Pb–Zn deposit in NE China, we have discovered exceptional selenium enrichment in canfieldite (up to 11.6 wt.% of Se). Incorporation of Se into canfieldite has been investigated by an integrated approach using field emission scanning electron microscopy, electron microprobe and single-crystal X-ray diffraction. Canfieldite has been identified as one of the dominant Ag-bearing ore minerals in the studied deposit, which occurs mostly in slate-hosted vein type Ag–Pb–Zn ore bodies. Selenium is either homogeneously or, remarkably, heterogeneously distributed in the different canfieldite fragments studied. Chemical variations of Se are mostly attributable to a series of retrograde reactions resulting in diverse decomposition and exsolution of primary phases during cooling, or alternatively, related to influxes of Se-rich fluids during the formation of canfieldite. To evaluate the effects of the Se-for-S substitution in the structure, a crystal of Se-rich canfieldite [Ag7.98Sn1.02(S4.19Se1.81)Σ6.00] was investigated. The unit-cell parameters are: a = 10.8145(8) Å and V = 1264.8(3) Å3. The structure was refined in the space group F$\bar{4}$3m to R1 = 0.0315 for 194 independent reflections, with 20 parameters. The crystal structure of Se-rich canfieldite was found to be topologically identical to that of pure canfieldite. If the short Ag–Ag contacts are ignored (due to the disorder), the two Ag atoms in the structure can be considered as three-fold (Ag1) and four-fold (Ag2) coordinated. Tin adopts a regular tetrahedral coordination. As in the case of Te-rich canfieldite, the refinement of the site-occupancy factor indicates that Se is disordered over the three anion positions.

Type
Article
Copyright
Copyright © Mineralogical Society of Great Britain and Ireland 2018 

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Footnotes

Associate Editor: František Laufek

References

Bindi, L., Evain, M. and Menchetti, S. (2006) Temperature dependence of the silver distribution in the crystal structure of natural pearceite, (Ag,Cu)16(As,Sb)2S11. Acta Crystallographica, B62, 212219.Google Scholar
Bindi, L., Evain, M. and Menchetti, S. (2007) Complex twinning, polytypism and disorder phenomena in the crystal structures of antimonpearceite and arsenpolybasite. The Canadian Mineralogist, 45, 321333.Google Scholar
Bindi, L., Nestola, F., Guastoni, A., Zorzi, F., Peruzzo, L. and Raber, T. (2012) Te-rich canfieldite, Ag8Sn(S,Te)6, from Lengenbach quarry, Binntal, Canton Valais, Switzerland: Occurrence, description and crystal structure. The Canadian Mineralogist, 50, 111118.Google Scholar
Bindi, L., Keutsch, F.N., Morana, M. and Zaccarini, F. (2017) Spryite, Ag8(As0.53+As0.55+)S6: structure determination and inferred absence of superionic conduction of the first As3+-bearing argyrodite. Physics and Chemistry of Minerals, 44, 7582.Google Scholar
Chen, Y.J., Zhang, C., Wang, P., Pirajno, F. and Li, N. (2017) The Mo deposits of Northeast China: a powerful indicator of tectonic settings and associated evolutionary trends. Ore Geology Reviews, 81, 602640.Google Scholar
Dykqs, D. (1985) Silver minerals of Panasqueira, Portugal: a new occurrence of Te-bearing canfieldite. Mineralogical Magazine, 49, 745748.Google Scholar
Evain, M., Bindi, L. and Menchetti, S. (2006) Structural complexity in minerals: twinning, polytypism and disorder in the crystal structure of polybasite, (Ag,Cu)16(Sb,As)2S11. Acta Crystallographica, B62, 447456.Google Scholar
Gao, J., Klemd, R., Zhu, M., Wang, X., Li, J., Wan, B., Xiao, W., Zeng, Q., Shen, P., Sun, J. and Qin, K. (2017) Large-scale porphyry-type mineralization in the Central Asian metallogenic domain: A review. Journal of Asian Earth Sciences, 165, 736.Google Scholar
Harris, D.C. and Owens, D.R. (1971) A tellurium-bearing canfieldite, from Revelstoke, BC. The Canadian Mineralogist, 10, 895898.Google Scholar
Ibers, J.A. and Hamilton, W.C. (editors) (1974) International Tables for X-ray Crystallography, vol. IV, 366 pp. Kynock, Dordrecht, The Netherlands.Google Scholar
Ishii, M., Onoda, M. and Shibata, K. (1999) Structure and vibrational spectra of argyrodite family compounds Cu8SiX6 (X = S, Se) and Cu8GeS6. Solid State Ionics, 121, 1118.Google Scholar
Jiang, B.B., Zhu, X.Y., Huang, X.K., Xu, Q. and Zhang, Z.Q. (2017) Isotopic characteristics of sulfur and lead and metallogenic mechanism of Shuangjianzishan silver polymetallic deposit in Inner Mongolia. Mineral Exploration, 8, 10101019 [in Chinese with English abstract].Google Scholar
Kuang, Y.S., Zheng, G.R., Lu, M.J., Liu, Y.L., Zhang, S.J., Li, R.Y. and Cheng, W.J. (2014) Basic characteristics of Shuangjianzishan silver polymetallic deposit in Chifeng City, Inner Mongolia. Mineral Deposits, 33, 847856 [in Chinese with English abstract].Google Scholar
Li, J.Y. (2006) Permian geodynamic setting of Northeast China and adjacent regions: closure of the Paleo-Asian Ocean and subduction of the Paleo-Pacific Plate. Journal of Asian Earth Sciences, 26, 207224.Google Scholar
Liu, C., Bagas, L. and Wang, F. (2016) Isotopic analysis of the super-large Shuangjianzishan Pb–Zn–Ag deposit in Inner Mongolia, China: Constraints on magmatism, metallogenesis, and tectonic setting. Ore Geology Reviews, 75, 252267.Google Scholar
Liu, K., Zhang, J., Wilde, S. A., Zhou, J., Wang, M., Ge, M., Wang, J. and Ling, Y. (2017) Initial subduction of the Paleo-Pacific Oceanic plate in NE China: Constraints from whole-rock geochemistry and zircon U-Pb and Lu-Hf isotopes of the Khanka Lake granitoids. Lithos, 274–275, 254270.Google Scholar
Mao, J., Pirajno, F., Lehmann, B., Luo, M. and Berzina, A. (2014) Distribution of porphyry deposits in the Eurasian continent and their corresponding tectonic settings. Journal of Asian Earth Sciences, 79, 576584.Google Scholar
Marioko, T. (1981) Silver distribution and silver-bearing minerals in the Nakayama and Hitokata ore deposits of the Nakatatsu mine, Fukui Prefecture, Japan. Mining Geology, Special Issue, 10, 159179.Google Scholar
Milési, J.P., Marcoux, E., Nehlig, P., Sunarya, Y., Sukandar, A. and Felenc, J. (1994) Cirotan, West Java, Indonesia; a 1.7 Ma hybrid epithermal Au-Ag-Sn-W deposit. Economic Geology, 89, 227245.Google Scholar
Nekrasova, A.H. and Borodaev, S. (1972) Pervaia nakhodka selensoderzhashchego kanfildita, Doklady Akademy Nauk SSSR, 203, 907910 [in Russian].Google Scholar
Ouyang, H., Mao, J., Santosh, M., Wu, Y., Hou, L. and Wang, X. (2014) The Early Cretaceous Weilasituo Zn–Cu–Ag vein deposit in the southern Great Xing'an Range, northeast China: Fluid inclusions, H, O, S, Pb isotope geochemistry and genetic implications. Ore Geology Reviews, 56, 503515.Google Scholar
Ouyang, H., Mao, J., Zhou, Z. and Su, H. (2015) Late Mesozoic metallogeny and intracontinental magmatism, southern Great Xing'an Range, northeastern China. Gondwana Research, 27, 11531172.Google Scholar
Oxford Diffraction (2006) CrysAlis RED (Version 1.171.31.2) and ABSPACK in CrysAlis RED. Oxford Diffraction, Abingdon, Oxfordshire, England.Google Scholar
Paar, W.H., Roberts, A.C., Berlepsch, P., Armbruster, T., Topa, D. and Zagler, G. (2004) Putzite, (Cu4.7Ag3.3)8GeS6, a new mineral species from Capillitas, Catamarca, Argentina: description and crystal structure. The Canadian Mineralogist, 42, 17571769.Google Scholar
Popescu, G.C. and Neacşu, A. (2011) Preliminary data on two tin-sulfosalts (canfieldite and pirquitasite) from Roşia Montană. Romanian Journal of Earth Sciences, 85, 3541.Google Scholar
Sheldrick, G.M. (2008) A short history of SHELX. Acta Crystallographica, A64, 112122.Google Scholar
Shu, Q., Chang, Z., Lai, Y., Zhou, Y., Sun, Y. and Yan, C. (2016) Regional metallogeny of Mo-bearing deposits in northeastern China, with new Re-Os dates of porphyry Mo deposits in the northern Xilamulun district. Economic Geology, 111, 17831798.Google Scholar
Tămaş, C.G., Grobety, B., Bailly, L., Bernhardt, H.J. and Minuţ, A. (2014) Alburnite, Ag8GeTe2S4, a new mineral species from the Roşia Montana Au-Ag epithermal deposit, Apuseni Mountains, Romania. American Mineralogist, 99, 5764.Google Scholar
Voudouris, P.C., Melfos, V., Spry, P.G., Moritz, R., Papavassiliou, C. and Falalakis, G. (2011) Mineralogy and geochemical environment of formation of the Perama Hill high-sulfidation epithermal Au-Ag-Te-Se deposit, Petrota Graben, NE Greece. Mineralogy and Petrology, 103, 79100.Google Scholar
Weisbach, A. (1886) Argyrodit, ein neues Silbererz. Neues Jahrbuch für Mineralogie, Geologie und Paläontologie, 2, 6771.Google Scholar
Wilde, S.A. (2015) Final amalgamation of the Central Asian Orogenic Belt in NE China: Paleo-Asian Ocean closure versus Paleo-Pacific plate subduction — A review of the evidence. Tectonophysics, 662, 345362.Google Scholar
Wu, F.Y., Sun, D.Y., Ge, W.C., Zhang, Y.B., Grant, M.L., Wilde, S.A. and Jahn, B.M. (2011) Geochronology of the Phanerozoic granitoids in northeastern China. Journal of Asian Earth Sciences, 41, 130.Google Scholar
Wu, G., Liu, J., Zeng, Q., Liu, M., Sun, H., Yin, Z. and Yin, X. (2014) Occurrences of silver in the Shuangjianzishan Pb-Zn-Ag deposit and its implications for mineral processing. Earth Science Frontiers, 21, 105115 [in Chinese with English abstract].Google Scholar
Zeng, Q., Liu, J., Chu, S., Guo, Y., Gao, S., Guo, L. and Zhai, Y. (2016) Poly-metal mineralization and exploration potential in southern segment of the Da Hinggan Mountains. Journal of Jilin University (Earth Science Edition), 46, 11001123 [in Chinese with English abstract].Google Scholar
Zhai, D., Liu, J., Wang, J., Yang, Y., Zhang, H., Wang, X., Zhang, Q., Wang, G. and Liu, Z. (2014 a) Zircon U-Pb and molybdenite Re-Os geochronology, and whole-rock geochemistry of the Hashitu molybdenum deposit and host granitoids, Inner Mongolia, NE China. Journal of Asian Earth Sciences, 79, 144160.Google Scholar
Zhai, D., Liu, J., Zhang, H., Yao, M., Wang, J. and Yang, Y. (2014 b) S-Pb isotopic geochemistry, U-Pb and Re-Os geochronology of the Huanggangliang Fe-Sn deposit, Inner Mongolia, NE China. Ore Geology Reviews, 59, 109122.Google Scholar
Zhai, D., Liu, J., Zhang, A. and Sun, Y. (2017) U-Pb, Re-Os and 40Ar/39Ar geochronology of porphyry Sn ± Cu ± Mo and polymetallic (Ag–Pb–Zn-Cu) vein mineralization at Bianjiadayuan, Inner Mongolia, NE China: Implications for discrete mineralization events. Economic Geology, 112, 20412059.Google Scholar
Zhai, D., Liu, J., Tombros, S. and Williams-Jones, A.E. (2018 a) The genesis of the Hashitu porphyry molybdenum deposit, Inner Mongolia, NE China: constraints from mineralogical, fluid inclusion, and multiple isotope (H, O, S, Mo, Pb) studies. Mineralium Deposita, 53, 377397.Google Scholar
Zhai, D., Liu, J., Zhang, H., Tombros, S. and Zhang, A. (2018 b) A magmatic-hydrothermal origin for Ag–Pb–Zn vein formation at the Bianjiadayuan deposit, Inner Mongolia, NE China: Evidences from fluid inclusion, stable (C-H-O) and noble gas isotope studies. Ore Geology Reviews, 101, 116.Google Scholar
Zhai, D., Liu, J., Cook, N.J., Wang, X., Yang, Y., Zhang, A. and Jiao, Y. (2019) Mineralogical, textural, sulfur and lead isotope constraints on the origin of Ag–Pb–Zn mineralization at Bianjiadayuan, Inner Mongolia, NE China. Mineralium Deposita, 54, 4766.Google Scholar
Zhou, J.B., Wilde, S.A., Zhao, G.C. and Han, J. (2017) Nature and assembly of microcontinental blocks within the Paleo-Asian Ocean. Earth-Science Reviews, 186, 7693.Google Scholar
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