A crystal-chemical classification of borate structures with emphasis on hydrated borates
Physics and Chemistry of Minerals
By: C. L. Christ and J. R. Clark
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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.
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | A crystal-chemical classification of borate structures with emphasis on hydrated borates |
| Series title | Physics and Chemistry of Minerals |
| DOI | 10.1007/BF00307525 |
| Volume | 2 |
| Issue | 1-2 |
| Year Published | 1977 |
| Language | English |
| Publisher | Springer-Verlag |
| Larger Work Type | Article |
| Larger Work Subtype | Journal Article |
| Larger Work Title | Physics and Chemistry of Minerals |
| First page | 59 |
| Last page | 87 |
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