Calcified Tissue Research

, Volume 16, Issue 1, pp 59–71 | Cite as

Optical, physical and chemical properties of pineal gland calcifications

  • Curtis P. Mabie
  • Betty M. Wallace
Original Papers


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.

Key words

Apatite Calcification Pineal gland Calcospherulites Calculi 


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Copyright information

© Springer-Verlag 1974

Authors and Affiliations

  • Curtis P. Mabie
    • 1
  • Betty M. Wallace
    • 1
  1. 1.Research Associates of the American Dental Association Research Unit at the National Bureau of StandardsWashington, D. C.U.S.A.

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