| Reference Type | Journal (article/letter/editorial) |
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| Title | Structure and twinning in
spencerite |
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| Journal | Mineralogical Magazine |
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| Authors | Fanfani, L. | Author |
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| Nunzi, A. | Author |
| Zanazzi, P. F. | Author |
| Year | 1972 (June) | Volume | 38 |
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| Issue | 298 |
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| Publisher | Mineralogical Society |
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| Download URL | https://rruff.info/doclib/MinMag/Volume_38/38-298-687.pdf+ |
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| DOI | doi:10.1180/minmag.1972.038.298.05Search in ResearchGate |
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| Generate Citation Formats |
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| Mindat Ref. ID | 6560 | Long-form Identifier | mindat:1:5:6560:7 |
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| GUID | 0 |
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| Full Reference | Fanfani, L., Nunzi, A., Zanazzi, P. F. (1972) Structure and twinning in
spencerite. Mineralogical Magazine, 38 (298) 687-692 doi:10.1180/minmag.1972.038.298.05 |
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| Plain Text | Fanfani, L., Nunzi, A., Zanazzi, P. F. (1972) Structure and twinning in
spencerite. Mineralogical Magazine, 38 (298) 687-692 doi:10.1180/minmag.1972.038.298.05 |
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| In | (1972, June) Mineralogical Magazine Vol. 38 (298) Mineralogical Society |
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| Abstract/Notes | SummaryA refinement of the crystal structure of spencerite, Zn4(PO4)2(OH)2·3H2O, was performed on a twin crystal from Salmo, British Columbia. Three-dimensional intensity data were collected by a Weissenberg apparatus. The R index was 0·098 for 335 independent observed reflections. The crystal structure previously determined is essentially confirmed. Co-ordination around Zn is both octahedral and tetrahedral. The atomic arrangement consists of complex sheets of co-ordination octahedra and tetrahedra around Zn and P atoms connected by layers of water molecules. The frequent occurrence of twinning in spencerite is explained from structural considerations. |
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