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Biagioni, C., Bonaccorsi, E., Moelo, Y., Orlandi, P., Bindi, L., D'Orazio, M. & Vezzoni, S. (2014) Mercury-arsenic sulfosalts from the Apuan Alps (Tuscany, Italy). II. Arsiccioite, AgHg2TlAs2S6, a new mineral from the Monte Arsiccio mine: Occurrence, crystal structure and crystal chemistry of the routhierite isotypic series. Mineral. Mag. 78 101–117.
Added by: Florent Boucher (2016-04-29 09:26:45) |
| Type de référence: Article DOI: 10.1180/minmag.2014.078.1.08 Numéro d'identification (ISBN etc.): 0026-461X Clé BibTeX: Biagioni2014f Voir tous les détails bibliographiques  |
Catégories: MIOPS Mots-clés: Apuan Alps, arsenic, arsiccioite, chemical formula, crystal structure, definition, della-vena mine, deposit, Italy, lead-antimony sulfosalts, lengenbach, mercury, Monte Arsiccio mine, new mineral species, redetermination, refinement, silver, sulfosalt, switzerland, thallium, tuscany Créateurs: Biagioni, Bindi, Bonaccorsi, D'Orazio, Moelo, Orlandi, Vezzoni Collection: Mineral. Mag. |
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| Résumé |
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{The new mineral species arsiccioite, AgHg2TlAs2S6, was discovered in the baryte-pyrite-iron oxide ore deposit exploited at the Monte Arsiccio mine, near Sant'Anna di Stazzema (Apuan Alps, Tuscany, Italy). It occurs as anhedral grains scattered in microcrystalline baryte, associated with cinnabar, laffittite, protochabourneite, pyrite, realgar, Hg-bearing sphalerite and stibnite. Arsiccioite is red, with a metallic to sub-metallic lustre. Minimum and maximum reflectance data for COM wavelengths in air are [lambda (nm): R (%)]: 471.1: 29.0/29.4; 548.3: 27.6/28.3; 586.6: 26.1/26.5; 652.3: 24.2/24.6. Electron microprobe analyses give (wt.%): Cu 0.78(6), Ag 8.68(21), Zn 0.47(27), Fe 0.04(1), Hg 35.36(87), Cd 0.20(5), Tl 18.79(33), As 10.77(19), Sb 4.75(10), S 18.08(21), Se 0.07(5), total 97.99(44). On the basis of Sigma Me = 6 a.p.f.u., the chemical formula is Ag0.87(2)Cu0.13(1)Zn0.08(4)Fe0.01(1)Hg1.91(5)Cd0.02(1)Tl1.00(2) (As1.56(2)Sb0.42(1))(Sigma 1.98)S6.12(6)Se0.01(1). Arsiccioite is tetragonal, I (4) over bar 2m, with a 10.1386(6), c 11.3441(5) angstrom, V 1166.1(2) angstrom(3)
Added by: Florent Boucher |