Chemical Analysis of Partial Denture a Century ago

Abstract

In February 1972, an old samurai's adipocerelike corpse a century ago was found in the vicinity of Niigata, Japan. A partial denture made of stone was found in his coffin, which seemed to have been put in the frontal part of his upper jaw.
By the x-ray microanalyses and the x-ray diff ractometer, the partial denture was identified to be "roseki" (pyrophyllite rock).