...Luca Bindi; Christopher J. Stanley; Paul G. Spry Abstract The determination of the crystal structure of benleonardite ( P 3İ m 1; R = 0.0321 for 1250 reflections and 102 parameters; refined formula Ag 15.00 Cu 1.00 Sb 1.58 As 0.42 S 7.03 Te 3.97 ) obtained using data from a gem-quality, untwinned...

..., pearceite–polybasite and Au-Ag alloy. Locally, Se and/or Te-enriched minerals include galena Pb(S 0.9–1 Se 0.1–0 ), hessite Ag 2 (Te 0.9–1 Se 0.1–0 ), Se-rich cervelleite Ag 4 (Te 1.3–0.9 S 1–0.5 Se 0.5–0.2 ), and also alburnite [Ag 8 GeTe 2 S 4 ] and benleonardite [Ag 15 Cu(As,Sb) 2 S 7 Te 4 ]. Pearceite...

... incorporation of Au, Cu, Pb and Bi or substitution between Te and S. Table 1. Electron-microprobe analyses of unnamed Ag-Fe-(Bi)-Te-S minerals. Karup-Møller et al. (1989) reported an unnamed Ag 10 FeTe 2 S 4 intergrown with galena and benleonardite (?) from the Boliden district of northern...

... = 1589.8(8) Å 3 . A paper on the mineral benleonardite has been published recently [ Mineralogical Magazine , 79 , 1213–1221 (2015)] in which the ideal chemical formula of the mineral is given as Ag 15 Cu(Sb,As) 2 S 7 Te 4 . In this formula, based on new EPMA and SCXRD data, Cu is present...

... on four other new minerals. As was only fitting after having identified and named several new minerals, a new mineral (benleonardite, a Ag-Sb sulfotelluride) was named after him in 1985 by his British colleagues ( Stanley et al. 1986 ); moreover, he has the distinction of having an Eocene larch, Larix...

... ] with M  = Ag and Cu, T  = As and Sb, and X  = S, Se and Te, are fairly common in Nature. Eight members are known at present: argentopearceite (Sejkora et al. , 2020 ), argentopolybasite (Števko et al. , 2023 ), benleonardite (Bindi et al. , 2015 ), cupropearceite (Bindi et al. , 2007a , 2007c...

... and cupropearceite (Bindi et al. , 2007d ) and the Se-rich member with formula [(Ag,Cu) 6 (Sb,As) 2 (S,Se) 7 ][Ag 9 Cu(S,Se) 2 Se 2 ] as selenopolybasite (Bindi et al. , 2007b ). More recently, benleonardite [Ag 6 (Sb,As) 2 S 6 Te] [Ag 9 Cu(S,Te) 2 Te 2 ] was recognised as a member of this group (Bindi et al...

...,Se)7][Ag9Cu(S,Se)2Se2] as selenopolybasite (Bindi et al. 305 2007b). More recently also benleonardite [Ag6(Sb,As)2S6Te] [Ag9Cu(S,Te)2Te2] was 306 recognized as a member of this group (Bindi et al. 2015a). 307 For the approved members of this group, contents about 1 apfu Cu at B module layer 308...

...±tetrahedrite±electrum±sphalerite (the latter containing chalcopyrite disease). Many hessite grains have a thin, 1–2 µm wide benleonardite (Ag 4 TeS) rim and associated 1–3 µm grains of native tellurium and acanthite (Ag 2 S). Hessite also forms bladed aggregates with altaite (PbTe), rucklidgeite (BiPb) 3 Te 4...

...., Criddle, A.J. and Chisholm, J.E. ( 1986 ) Benleonardite, a new mineral from the Bambolla mine, Moctezuma, Sonora, Mexico. Mineralogical Magazine , 50 , 681 –686. Harris, D.C., Roberts, A.C. and Criddle, A.J. ( 1986 ) Izoklakeite, a new mineral species from Izok Lake, Northwest Territories...

... . Spry P.G. Thieben S.E. ( 1996 ) Two new occurrences of benleonardite, a rare silver-tellurium sulphosalt, and a possible new occurrence of cervelleite . Mineralogical Magazine , 60 , 871 – 876 . Suh I-K. Ohta H. Waseda Y. ( 1988 ) High-temperature thermal expansion...

.... Moctezuma is the type locality for 22 known minerals, all containing Te ( Braith et al. 2001 ). Three of those minerals are tellurides (bambollaite, benleonardite, cervelleite), corresponding to primary hydrothermal minerals. The rest are tellurites (Te 4+ ) and tellurates (Te 6+ ) that developed during...

... with laffittite althougt in this species the (Ag, Hg)/ Pn /S ratio is quite distinct, and is identical to that of stephanite (5/1/4). 6. Unclassified Ag sulfosalts Benleonardite , Ag 8 (Sb, As)Te 2 S 3 Tsnigriite , Ag 9 Sb(S, Se) 3 Te 3 Def.: Sandomirskaya et al. (1992) . May be related...