Optical, physical and chemical properties of pineal gland calcifications
- Cite this article as:
- Mabie, C.P. & Wallace, B.M. Calc. Tis Res. (1974) 16: 59. doi:10.1007/BF02008213
Calcifications of the pineal gland in the form of calcospherulites have been studied by optical microscopy, electron microscopy, electron probe analysis, X-ray diffraction, thermogravimetry, and infra-red and chemical analysis. Complex calcospherulite textures have been observed which have a granular substructure made up of apatite crystals averaging 218 Å in length and 38 Å in width. These apatite crystals appear to be a carbonate-containing hydroxyapatite, mineralogically similar to enamel.