References
-
Hev. Chim. Acta.
v.30
The Precipitation and X-ray Examination of the
$Ca_{10}$ (PO₄)₂(OH)₂-$Pb_{10}$ $(Pb₄)_5$ (OH)₂Solid Solutions Muller, Marcel - Ann. Chim. v.6 Etude des Substitutions Dans les Apatites Niaki, Att-Naghi Aknavan
- Neues Jahrb. Mineral. Abh. v.99 Untersuchungen zur Kristallchemie der Blei-Apatite(Pyromorphite) Wondratschek, Hans
- Am. Miner. v.55 Crystal Chemistry and Color in Apatites Containing Cobalt,Nickel and Rare-Earth Ions D. A. Grisafe;F. A. Hummel
- Am. Miner. v.55 The Crystal Chemistry of Apatite Eric R. Kreidler;F. A. Hummel