Abstract
To confirmed that CaSO4・2H2O can grow epitaxially on hydroxyapatite crystals, the crystals were introduced into metastable solutions of calcium sulfate supersaturated with respect to CaSO4・2H2O.Upon introduction of the crystals, solution calcium concentration decreased.This finding strongly suggests that CaSO4・2H2O precipitates directly on hydroxyapatite crystals, indicating that the crystals are a excellent nucleator for CaSO4・2H2O.Transmission electron micrographs of reaction solids confirmed that CaSO4・2H2O crystals growed epitaxially on hydroxyapatite crystals.
