Change from sixfold to fivefold coordination of silicate polyhedra: Insights from first-principles calculations of CaSi2O5
Recent x-ray-diffraction observations found a triclinic phase of CaSi2O5 stable under ambient conditions, related to a monoclinic phase with the titanite structure. It differs from the titanite structure by the elongation and loss of a Si-O bond within a SiO6 octahedron, thus having SiO5 polyhedra....
| Main Authors: | , , |
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| Format: | Journal article |
| Language: | English |
| Published: |
1999
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