Abstract
The 27Al NMR spectroscopy of glassy 2PbO.B2O3 calorimetric fluxes containing from 1.0 to 23.8 mol.% Al (from dissolved alpha -Al2O3 or NaAlSi3O8 (albite) glass) shows that approx 92% of the Al is in four-fold coordination to oxygen (Al(4)), with the remainder mostly in six-fold coordination to oxygen (Al(6)) and that the chemical shifts and Al(4)/Al(6) ratios do not change measurably in this composition range. -J.A.Z.
Original language | English (US) |
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Pages (from-to) | 788-791 |
Number of pages | 4 |
Journal | American Mineralogist |
Volume | 72 |
Issue number | 7-8 |
State | Published - 1987 |
Externally published | Yes |
ASJC Scopus subject areas
- Geophysics
- Geochemistry and Petrology