Zur Kristallstruktur der gemischten Phosphat/Sulfat-Fluorapatite

It is shown that the apatite phases of composition Ca₁₀₋ₓNaₓ(PO₄)₆₋ₓ(SO₄)ₓF2 crystallize in a monoclinic unit cell, which is related to those of pure fluoroapatite by doubling the 6b-parameter. Some comparisons with related systems are made and a possible explanation for the origin of the small mon...

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Detalles Bibliográficos
Autores principales: Apella, María Cristina, Baran, Enrique José
Formato: Articulo
Lenguaje:Alemán
Publicado: 1981
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Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/120746
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Sumario:It is shown that the apatite phases of composition Ca₁₀₋ₓNaₓ(PO₄)₆₋ₓ(SO₄)ₓF2 crystallize in a monoclinic unit cell, which is related to those of pure fluoroapatite by doubling the 6b-parameter. Some comparisons with related systems are made and a possible explanation for the origin of the small monoclinic distortion is advanced.