#176

#176

P63/m

Example – Fluorapatite, Ca5(PO4)3F

Named as the fluorine end-member and from the Greek apatao – “I am misleading.”

Structural variations in natural F, OH, and Cl apatites

Hughes J M, Cameron M, Crowley K D
American Mineralogist 74 (1989) 870-876

 

http://webmineral.com/data/Apatite-(CaF).shtml

CIF
http://rruff.geo.arizona.edu/AMS/download.php?id=01285.cif&down=cif

Fluorapatite

CaO6 or CaO5F strongly distorted octahedra
PO4 tetrahreda (orange)
F (green)

 

3D rotatable model of Fluorapatite

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