方解石貝殻内表面の渦巻成長-IV

方解石の結晶構造

抄録

1) Crystal and submicroscopic structures of the calcite constructed near the top of growth hills were observed on the Ostrea shell with an electron microscope.
2) The calcite occurs in various crystalline states among different parts of a single hill.
3) The top of a hill, in general, consists of amorphous calcite.
4) Parallel imbricated calcite crystals emitted radially from the top of a hill dispose in the dendritic arrangement just like a spherulite.