| Abstract: | The rules governing formation of hydrated borate polyanions that were proposed by C.L. Christ in 1960 are critically reviewed and new rules added on the basis of recent crystal structure determinations. Principles and classifications previously published by others are also critically reviewed briefly. The fundamental building blocks from which borate polyanions can be constructed are defined on the basis of the number n of boron atoms, and the fully hydrated polyanions are illustrated. Known structures are grouped accordingly, and a shorthand notation using n and symbols ?? = triangle, T = tetrahedron is introduced so that the polyanions can be easily characterized. For example, 3:??+2T describes [B3O3(OH)5]2-. Correct structural formulas are assigned borates with known structures whereas borates of unknown structure are grouped separately. ?? 1977 Springer-Verlag. |
| Genre: | Article |
| ProdID: | 70001069 |
| Citation Author: | Christ, C. L.; Clark, J. R. |
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| Citation End Page: | 87 |
| Citation Issue: | 1-2 |
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| Citation Language: | English |
| Citation Larger Work Title: | Physics and Chemistry of Minerals |
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| Citation Publisher: | Springer-Verlag |
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| Citation Search Results Text: | A crystal-chemical classification of borate structures with emphasis on hydrated borates; 1977; Article; Journal; Physics and Chemistry of Minerals; Christ, C. L.; Clark, J. R. |
| Citation Start Page: | 59 |
| Citation Volume: | 2 |
| Citation Year: | 1977 |
| Type: | citation/reference |
| Text: | A crystal-chemical classification of borate structures with emphasis on hydrated borates; 1977; Article; Journal; Physics and Chemistry of Minerals; Christ, C. L.; Clark, J. R. |
| URL (THUMBNAIL): | http://pubs.er.usgs.gov/thumbnails/outside_thumb.jpg |
| URL (DIGITAL OBJECT IDENTIFIER): | http://dx.doi.org/10.1007/BF00307525 |
| Date Other: | Tue, 28 Sep 2010 23:09 -0500 |
| Publisher: | Springer-Verlag |
