| Reference Type | Journal (article/letter/editorial) |
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| Title | Pirquitasite, Ag2ZnSnS4 |
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| Journal | Acta Crystallographica Section E Structure Reports Online |
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| Authors | Schumer, Benjamin N. | Author |
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| Downs, Robert T. | Author |
| Domanik, Kenneth J. | Author |
| Andrade, Marcelo B. | Author |
| Origlieri, Marcus J. | Author |
| Year | 2013 (February 15) | Volume | 69 |
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| Issue | 2 |
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| Publisher | International Union of Crystallography (IUCr) |
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| Download URL | https://rruff.info/rruff_1.0/uploads/ACE69_i8.pdf+ |
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| DOI | doi:10.1107/s1600536813001013Search in ResearchGate |
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| Generate Citation Formats |
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| Classification | Not set | LoC | Not set |
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| Mindat Ref. ID | 4744124 | Long-form Identifier | mindat:1:5:4744124:2 |
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| GUID | 0 |
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| Full Reference | Schumer, Benjamin N., Downs, Robert T., Domanik, Kenneth J., Andrade, Marcelo B., Origlieri, Marcus J. (2013) Pirquitasite, Ag2ZnSnS4. Acta Crystallographica Section E Structure Reports Online, 69 (2) 8-9 doi:10.1107/s1600536813001013 |
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| Plain Text | Schumer, Benjamin N., Downs, Robert T., Domanik, Kenneth J., Andrade, Marcelo B., Origlieri, Marcus J. (2013) Pirquitasite, Ag2ZnSnS4. Acta Crystallographica Section E Structure Reports Online, 69 (2) 8-9 doi:10.1107/s1600536813001013 |
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| In | (2013, February) Acta Crystallographica Section E Structure Reports Online Vol. 69 (2) International Union of Crystallography (IUCr) |
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| Abstract/Notes | Pirquitasite, ideally Ag2ZnSnS4(disilver zinc tin tetrasulfide), exhibits tetragonal symmetry and is a member of the stannite group that has the general formulaA2BCX4, withA= Ag, Cu;B= Zn, Cd, Fe, Cu, Hg;C= Sn, Ge, Sb, As; andX= S, Se. In this study, single-crystal X-ray diffraction data are used to determine the structure of pirquitasite from a twinned crystal from the type locality, the Pirquitas deposit, Jujuy Province, Argentina, with anisotropic displacement parameters for all atoms, and a measured composition of (Ag1.87Cu0.13)(Zn0.61Fe0.36Cd0.03)SnS4. One Ag atom is located on Wyckoff site Wyckoff 2a(symmetry -4..), the other Ag atom is statistically disordered with minor amounts of Cu and is located on 2c(-4..), the (Zn, Fe, Cd) site on 2d(-4..), Sn on 2b(-4..), and S on general site 8g. This is the first determination of the crystal structure of pirquitasite, and our data indicate that the space group of pirquitasite is I-4, rather than I-42m as previously suggested. The structure was refined under consideration of twinning by inversion [twin ratio of the components 0.91 (6):0.09 (6)]. |
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