| Abstract: | Iimoriite-(Y) from Bokan Mountain, Prince of Wales Island, Alaska has been studied using single-crystal X-ray-diffraction techniques. The mineral, ideally Y2(SiO4)(CO3), crystallizes in space group P1, with a 6.5495(13), b 6.6291(14), c 6.4395(11)A??, ?? 116.364(15), ?? 92.556(15) and ?? 95.506(17)??. The atomic arrangement has been solved and refined to an R value of 0.019. The arrangement of atoms consists of alternating (011) slabs of orthosilicate groups and carbonate groups, with no sharing of oxygen atoms between anionic complexes in adjacent slabs. Y1 atoms separate adjacent tetrahedra along [100] within the orthosilicate slab, and Y2 atoms separate adjacent carbonate groups along [100] within the carbonate slab. Adjacent orthosilicate and carbonate slabs are linked in (100) by bonding Y atoms from each slab to oxygen atoms of adjacent slabs, in the form of YO8 polyhedra. The Y1 atoms exist in Y12O14 dimers in the orthosilicate slab, and the Y2 atoms exist in continuous [011] ribbons of edge-sharing Y2O8 polyhedra in the carbonate slab. |
| Genre: | Article |
| ProdID: | 70019007 |
| Citation Author: | Hughes, J. M.; Foord, E. E.; Jai-Nhuknan, J.; Bell, J. M. |
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| Citation End Page: | 820 |
| Citation Issue: | 4 |
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| Citation Language: | English |
| Citation Larger Work Title: | Canadian Mineralogist |
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| Citation Number Of Pages: | 4 |
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| Citation Search Results Text: | The atomic arrangement of iimoriite-(Y), Y2(SiO4)(CO3); 1996; Article; Journal; Canadian Mineralogist; Hughes, J. M.; Foord, E. E.; Jai-Nhuknan, J.; Bell, J. M. |
| Citation Start Page: | 817 |
| Citation Volume: | 34 |
| Citation Year: | 1996 |
| Type: | citation/reference |
| Text: | The atomic arrangement of iimoriite-(Y), Y2(SiO4)(CO3); 1996; Article; Journal; Canadian Mineralogist; Hughes, J. M.; Foord, E. E.; Jai-Nhuknan, J.; Bell, J. M. |
| URL (THUMBNAIL): | http://pubs.er.usgs.gov/thumbnails/outside_thumb.jpg |
| Date Other: | Mon, 1 Jan 1996 00:00 -0600 |
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