| Reference Type | Journal (article/letter/editorial) |
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| Title | Hitachiite, Pb5Bi2Te2S6, a new mineral from the Hitachi mine, Ibaraki Prefecture, Japan |
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| Journal | Mineralogical Magazine |
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| Authors | Kuribayashi, Takahiro | Author |
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| Nagase, Toshiro | Author |
| Nozaki, Tatsuo | Author |
| Ishibashi, Junichiro | Author |
| Shimada, Kazuhiko | Author |
| Shimizu, Masaaki | Author |
| Momma, Koichi | Author |
| Year | 2019 (October) | Volume | 83 |
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| Issue | 5 |
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| Publisher | Mineralogical Society |
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| Download URL | https://rruff.info/rruff_1.0/uploads/MM83_733.pdf+ |
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| DOI | doi:10.1180/mgm.2019.45Search 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 | 245185 | Long-form Identifier | mindat:1:5:245185:9 |
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| GUID | 0 |
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| Full Reference | Kuribayashi, Takahiro, Nagase, Toshiro, Nozaki, Tatsuo, Ishibashi, Junichiro, Shimada, Kazuhiko, Shimizu, Masaaki, Momma, Koichi (2019) Hitachiite, Pb5Bi2Te2S6, a new mineral from the Hitachi mine, Ibaraki Prefecture, Japan. Mineralogical Magazine, 83 (5) 733-739 doi:10.1180/mgm.2019.45 |
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| Plain Text | Kuribayashi, Takahiro, Nagase, Toshiro, Nozaki, Tatsuo, Ishibashi, Junichiro, Shimada, Kazuhiko, Shimizu, Masaaki, Momma, Koichi (2019) Hitachiite, Pb5Bi2Te2S6, a new mineral from the Hitachi mine, Ibaraki Prefecture, Japan. Mineralogical Magazine, 83 (5) 733-739 doi:10.1180/mgm.2019.45 |
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| Abstract/Notes | Hitachiite, Pb5Bi2Te2S6, is a new mineral discovered in the Hitachi mine, located in the Ibaraki Prefecture of Japan. The mean of 21 electron microprobe analyses gave: Pb 52.01, Bi 23.06, Fe 0.69, Sb 0.17, Te 13.74, S 9.71, Se 0.54, total 100.04 wt.%. The empirical chemical formula based on 15 apfu is (Pb4.75Fe0.23)Σ4.98(Bi2.09Sb0.03)Σ2.12Te2.04(S5.73Se0.13)Σ5.86, ideally Pb5Bi2Te2S6. Synchrotron single-crystal X-ray diffraction experiments indicated that hitachiite has trigonal symmetry, space group P${\bar 3}$m1, with a = 4.2200(13) Å, c = 27.02(4) Å and Z = 1. The four strongest diffraction peaks shown in the powder X-ray pattern [d, Å (I)(hkl)] are: 3.541(35)(012), 3.391(59)(013), 3.039(100)(015) and 2.114(56)(110). The calculated density (Dcalc) for the empirical chemical formula is 7.54 g/cm3.The crystal structure of hitachiite has been refined using synchrotron single-crystal X-ray diffraction data, to R = 7.38% and is based on ABC-type stacking of 15 layers (five Pb, two Bi, two Te, and six S layers) along the [001] direction, and with each layer ideally containing only one kind of atom. The stacking sequence is described as Te–Bi–S–Pb–S–Pb–S–Pb–S–Pb–S–Pb–S–Bi–Te. The discovery of hitachiite implies that the minerals of the Bi2Te2S–PbS join might form a homologous series of Bi2Te2S·nPbS. |
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