| Reference Type | Journal (article/letter/editorial) |
|---|
| Title | The crystal structure of berryite, Cu3Ag2Pb3Bi7S16 |
|---|
| Journal | The Canadian Mineralogist |
|---|
| Authors | Topa, Dan | Author |
|---|
| Makovicky, Emil | Author |
| Putz, Hubert | Author |
| Mumme, W. Gus | Author |
| Year | 2006 (April 1) | Volume | 44 |
|---|
| Page(s) | 465-480 | Issue | 2 |
|---|
| Publisher | Mineralogical Association of Canada |
|---|
| Download URL | https://rruff.info/doclib/cm/vol44/CM44_465.pdf+ |
|---|
| DOI | doi:10.2113/gscanmin.44.2.465Search in ResearchGate |
|---|
| Classification | Not set | LoC | Not set |
|---|
| Mindat Ref. ID | 64268 | Long-form Identifier | mindat:1:5:64268:8 |
|---|
|
| GUID | adc00e97-6d30-4ce3-820d-b05fd494e9ec |
|---|
| Full Reference | Topa, Dan, Makovicky, Emil, Putz, Hubert, Mumme, W. Gus (2006) The crystal structure of berryite, Cu3Ag2Pb3Bi7S16. The Canadian Mineralogist, 44 (2) 465-480 doi:10.2113/gscanmin.44.2.465 |
|---|
| Plain Text | Topa, Dan, Makovicky, Emil, Putz, Hubert, Mumme, W. Gus (2006) The crystal structure of berryite, Cu3Ag2Pb3Bi7S16. The Canadian Mineralogist, 44 (2) 465-480 doi:10.2113/gscanmin.44.2.465 |
|---|
| In | (2006, April) The Canadian Mineralogist Vol. 44 (2) Mineralogical Association of Canada |
|---|
| Abstract/Notes | The crystal structure of berryite, ideally Cu3Ag2Pb3Bi7S16, monoclinic, a 12.703(2), b 4.0305(7), c 28.925(5) Å, β 102.484(2)°, space group P21/m, Z = 2, Dcalc = 6.899 g/cm3, has been solved by direct methods and refined to an R1 index of 6.4% for 2352 unique reflections measured with MoKα X-radiation on a three-circle diffractometer equipped with a CCD area-detector. There are fifteen unique Me sites and sixteen S sites in the asymmetric unit. Three Pb sites and two Bi sites are located on the surfaces of PbS-like slabs four layers thick, of two kinds; four Bi sites and two Ag sites are located in the interior of the slabs. Copper atoms in triangular coordination lie in a single S layer, with pseudohexagonal geometry. One Bi site straddles the interspace between the PbS-like slab and the S–Cu layer. Three primitive pseudotetragonal subcells of the PbS-like slab match with two orthohexagonal subcells of the Cu–S layer; this semicommensurate lock-in structure is made possible by the extension of the a parameter of the PbS-like slab by insertion of wide AgS2+4 octahedra (linear S–Ag–S coordinations). The structure determined allowed us to derive model structures of orthorhombic berryite (a polytypic variant) and of watkinsonite, Cu2PbBi4(Se,S)8. Structures of Ca2Sb2S5 and La4In5S13 follow the same modular principles. |
|---|
These are possibly similar items as determined by title/reference text matching only.
