Methods for synthesis of nanocyrstalline apatites are presented, as well
as a series of specific reaction parameters that can be adjusted to
tailor, in specific ways, properties in the recovered product.
Particulate apatite compositions having aveage crystal size of less than
150 nm are provided. Products also can have a surface area of at least 40
m.sup.2/g and can be of high density.Hydroxyapatite material is
investigated in particular detail. Compositions of the invention can be
used as prosthetic implants and coatings for prosthetic implants.