Bulletin Mineralogie Petrologie

Sejkora Jiří, Šrein Vladimír, Šreinová Blanka, Dolníček Zdeněk

Ročník 25, číslo 2 (2017), strana 306-317

unnamed Se-analogue of pavonite, AgBi3Se5, clausthalite, bohdanowiczite, unnamed (Bi, Ag)3(Se, S, Te)4, Potůčky, Czech Republic

An interesting mineral association of Pb, Ag and Bi selenides was found in samples from the abandoned uranium deposit Princ Evžen near Potůčky in Krušné hory Mountains (Czech Republic). The unnamed Se-analogue of pavonite is the most abundant Se-bearing mineral phase. It forms anhedral aggregates up to 100 μm across and veinlets in chalcopyrite or coffinite in association with bohdanowiczite or unnamed Bi-selenide. Its empirical formula (mean of 97 analyses) can be expressed as (Ag_1.15Cu_0.02)_Σ1.17(Bi_2.74Pb_0.13Fe_0.01)_Σ2.88(Se_3.31S_1.62Te_0.01)_Σ4.94. The minerals from the galena - clausthalite solid solution series are abundant as tiny (several μm) grains in coffinite, anhedral grains up to 50 μm in size in association with bohdanowiczite inclusions are much rare. Bohdanowiczite forms grains up to 30 μm in size in association with unnamed Se-analogue of pavonite, clausthalite and unnamed Bi-selenide. Its chemical composition (mean of 10 analyses) corresponds to the empirical formula (Ag_0.99Fe_0.02Pb_0.01)_Σ1.02Bi_0.98(Se_1.68S_0.30Te_0.01)_Σ1.99. Unnamed Bi-selenide with ideal formula (Bi,Ag)₃(Se,S,Te)₄ was found as irregular grains up to 20 μm across in association with bohdanowiczite or unnamed Se-analogue of pavonite; its empirical formula (mean of 10 analyses) is (Bi_2.62Ag_0.30Pb_0.04)_Σ2.96 (Se_3.11S_0.74Te_0.20)_Σ4.05. The description and chemical composition of coexisting Se-free sulfides (chalcopyrite, pyrite, tennantite, sphalerite) are also given.

Abstrakt (PDF) - 190.77KB
Fulltext (PDF) - 3.06MB

Augé T, Petrunov R, Bailly L (2005) On the origin of the PGE mineralization in the Elatsite porphyry Cu-Au deposit, Bulgaria: comparison with the Baula-Nuasahi complex, India, and other alkaline PGE-rich porphyries. Can Mineral 43: 1355-1372

Banaś M, Atkin D, Bowles JFW, Simpson PR (1979) Definitive data on bohdanowiczite, a new silver bismuth selenide. Mineral Mag 43: 131-133

Bondarenko S, Grinchenko O, Semka V (2005) Au-Ag-Te-Se mineralization in the Potashnya gold deposit, Kocherov tectonic zone, Ukrainian Shield. Geochem, Mineral, Petrolog 43: 20-24

Cabral AR, Liessmann W, Jian W, Lehmann B (2017) Bismuth selenides from St. Andreasberg, Germany: an oxidised five-element style of mineralisation and its relation to post-Variscan vein-type deposits of Central Europe. Int J Earth Sci (Geol Rundsch) 106: 2359-2369

Coleman RG (1959) The natural occurrence of galena - clausthalite solid solution. Am Mineral 44: 166-174

Cook NJ, Ciobanu CL (2001) Paragenesis of Cu-Fe ores from Ocna de Fier-Dognecea (Romania), typifying fluid plume mineralization in a proximal skarn setting. Mineral Mag 65: 351-372

Cook NJ, Ciobanu CL, Wagner T, Stanley ChJ (2007) Minerals of the system Bi-Te-Se-S related to the tetradymite archetype: review of classification and compositional variation. Can Mineral 45: 665-708

Čech F, Vavřín I (1978) Poubaite, PbBi₂(Se,Te,S)₄, a new mineral. N Jb Mineral, Mh 9-19

Earley JW (1950) Description and synthesis of the selenide minerals. Am Mineral 35: 337-364

Förster HJ (2005) Mineralogy of the U-Se-polymetallic deposit Niederschlema-Alberoda, Erzgebirge, Germany. IV. The continuous clausthalite-galena solid-solution series. N Jb Mineral, Abh 181(2): 125-134

Förster HJ, Tischendorf G, Rhede D (2005) Mineralogy of the Niederschlema-Alberoda U-Se-polymetalic deposit, Erzgebirge, Germany. V. Watkinsonite, nevskite, bohdanowiczite and other bismuth minerals. Can Mineral 43: 899-908

Johan Z, Picot P, Ruhlmann F (1987) The ore mineralogy of the Otish Mountains uranium district, Quebec: skippenite, Bi₂Se₂Te, and watkinsonite, Cu₆PbBi₄(Se,S)₈. Two new mineral species. Can Mineral 25: 625-638

Klemenc O (1963) Závěrečná zpráva o geologicko - průzkumných pracech na úseku Potůčky. MS, archiv Diamo Příbram OO68/64, 1-57

Kovalenker VA, Plotinskaya OY (2005) Te and Se mineralogy of Ozernovskoe and Prasolovskoe epithermal gold deposit, Kuril - Kamchatka volcanic belt. Geochem, Mineral, Petrolog 43: 118-123

Kuznetsov SK, Sokerina NV, Filippov VN, Sokerin MY, Zharkov VA (2012) Selenium minerals in gold-bearing veins of the North Ural. Doklady Earth Sciences 442: 148-151

Liu H, Chang LLY (1994) Phase relation in the system PbS-PbSe-PbTe. Mineral Mag 58: 567-578

Miller R (1981) Kawazulite Bi₂Te₂Se, related bismuth minerals and selenian covellite from the Northwest Territories. Can Mineral 19: 341-348

Nesterov JG, Begizov VD, Zavjalov JN, Krjukov VK, Čvileva TN (1985) Pervaja nachodka bogdanovičita AgBiSe₂ v SSSR. Zap Všesojuz Miner Obšč 114: 212-216

Pouchou JL, Pichoir F (1985) “PAP” (φρZ) procedure for improved quantitative microanalysis. In: Microbeam Analysis (J. T. Armstrong, ed.). San Francisco Press, San Francisco, 104-106.

Pring A (1998) Selenides and sulfides from Iron Monarch, South Australia. N Jb Mineral, Mh 36-48.

Pringle GJ, Thorpe RI (1980) Bohdanowiczite, junoite and laitakarite from the Kidd creek mine, Timmins, Ontario. Can Mineral 18: 353-360

Sejkora J, Škácha P (2015a) Selenidy z fluoritového ložiska Moldava v Krušných horách (Česká republika). Bull mineral-petrolog Odd Nár Muz (Praha) 23(2): 229-241

Sejkora J, Škácha P (2015b) Výskyt selenidů na ložisku Běstvina v Železných horách (Česká republika). Bull mineral-petrolog Odd Nár Muz (Praha) 23(2): 255-260

Sejkora J, Škácha P (2017) Selenidová mineralizace z uranového rudního výskytu Velká (Česká republika). Bull Mineral Petrolog 25(2): 141-148

Sejkora J, Škácha P, Kopecký S sen, Kopecký S jun, Pauliš P, Malíková R, Velebil D (2016a) Se a Cu mineralizace z Bílé Vody u Javorníka (Česká republika). Bull mineral-petrolog Odd Nár Muz (Praha) 24(2): 161-177

Sejkora J, Šrein V, Šreinová B, Kopecký S sen, Kopecký S jun (2016b) Výskyt clausthalitu na uranovém rudním výskytu Boučí u Oloví, Krušné hory (Česká republika). Bull mineral-petrolog Odd Nár Muz (Praha) 24(2): 238-242

Schonwandt HK (1983) Interpretation of ore microstructures from a seleneous Cu-mineralization in South Greenland. N Jb Mineral, Abh 146: 302-332

Simon G, Essene EJ (1996) Phase relations among selenides, sulfides, tellurides, and oxides. I. Thermodynamic properties and calculated equilibria. Econ Geol 91: 1183-1208

Simon G, Kessler S E, Essene EJ (1997) Phase relations among selenides, sulfides, tellurides, and oxides. II. Application to selenide-bearing ore deposits. Econ Geol 92: 468-484

Simpson DR (1964) The binary system PbS - PbSe. Econ Geol 59: 150-153

Škácha P, Sejkora J, Plášil J (2017) Selenide mineralization in the Příbram uranium and base-metal district (Czech Republic). Minerals 7: 91.

Štimmel I (1958) Geologický zápis k materiálům o likvidaci úseku Princ Evžen v Potůčkách. MS, archiv Geofond Praha P 11626

Thorpe RI, Pringle GJ, Plant AG (1976) Occurrence of selenide nad sulphide minerals of the Kidd Creek massive sulphide deposit, Timmins, Ontario. Geol Surv Canad Paper 76-1A: 311-317

Veselý T (1982) Malá uranová ložiska krystalinika Českého masívu. III. část: oblast severozápadních a severních Čech. Geol Hydrometalurg Uranu 6(3): 3-46

Wright HD, Barnard WM, Halbig JB (1965) Solid solution in the system ZnS-ZnSe and PbS-PbSe at 300 ^oC and above. Am Mineral 50: 1802-1815

Yefimov AV, Nenasheva SN, Borodayev YS, Mozgova NN, Sivtsov AV (1988) Hypogene selenium mineralization in the Neva tin ore deposit. Novye Dannye Mineral 35: 128-151

Zavjalov JN (1985) Ob izostrukturnosti bogdanovičita i volynskita. Zap Všesojuz Miner Obšč 114: 434-440