Structural variations in natural F, OH, and Cl apatites

Structural variations in natural F, OH, and Cl apatites

The crystal structures of the hexagonal (P63/m) end-member apatites with the formula Ca5(PO4)3X (X = F, OH, Cl) were refined to R = 0.025, 0.016 and 0.020 for fluorapatite, hydroxylapatite and chlorapatite, respectively. The atomic arrangements of fluorapatite, hydroxylapatite and chlorapatite sugge...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Veröffentlicht in:The American mineralogist 1989-08, Vol.74 (7-8), p.870-876
Hauptverfasser: Hughes, John M, Cameron, Maryellen, Crowley, Kevin D
Format: Artikel
Sprache:eng
Schlagworte:
apatite
bonding
chemical composition
chlorapatite
crystal chemistry
crystal structure
fluorapatite
formula
hydroxylapatite
mineral data
Mineralogy
minerals
natural materials
nonsilicates
phosphates
refinement
unit cell
Online-Zugang:Volltext
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung:The crystal structures of the hexagonal (P63/m) end-member apatites with the formula Ca5(PO4)3X (X = F, OH, Cl) were refined to R = 0.025, 0.016 and 0.020 for fluorapatite, hydroxylapatite and chlorapatite, respectively. The atomic arrangements of fluorapatite, hydroxylapatite and chlorapatite suggest that these end-members are immiscible in solid solution.
ISSN:0003-004X
1945-3027