Browse > Article

The cultivation and characterization of akoya pearls  

Park, Ra-Young (Department of Gemological Engineering, Graduate School, Dongshin University)
Kim, Pan-Chae (Department of Gemological Engineering, Graduate School, Dongshin University)
Publication Information
Journal of the Korean Crystal Growth and Crystal Technology / v.15, no.4, 2005 , pp. 152-156 More about this Journal
Abstract
The cultivation of akoya pearls was carried out with bio bead nucleus prepared using the hydroxyapatite. The akoya pearls cultured with bio bead nucleus were shown the color of cream. The luster and orient effect created by an action of the light from nacre were magnificent. The result of XRD is found that the nacre is a calcium carbonate of aragonite form. From the result of SEM, it is found that layers of calcium carbonate and conchiolin are stratified. The properties of akoya pearls cultured with bio bead nucleus are same those of akoya pearl cultivated with bead nucleus made from washboard shell. Because of the bio bead nucleus developed in this study has such a high capacity in producing various sizes and shapes, it is very advantageous for the cultivation of akoya pearls.
Keywords
Hydroxyapatite; Bio bead nucleus; Akoya pearl; Washboard shell;
Citations & Related Records
연도 인용수 순위
  • Reference
1 Shohei Shirai, 'Pearls & pearl oysters of the world', lst ed. (Marine Planning Co., Ltd., Japan,1981) p.78
2 J.U. Oh, 'The estimation characteristics of cultured pearls', J. Kor. Ass. Cryst. Growth 13(6) (2003) 315
3 KH, Hene Reinitz and Tom Moses, 'Cultured, with colored bead nuclei', Gems & Gemology 26(3) (1990) 222
4 Kouji Wada, 'The pearl: formation and grading', lst ed. (Gemological Association of All Japan, Japan, 1982), p. 226
5 R.Y. Park and P.C. Kim, 'The cultivation and characterization of image abalone pearl', J. Kor. Ass. Cryst. Growth 14(2) (2004) 78
6 N.H. Landman, 'Pearls-A natural history', Dedorah Aaronson (Harry N. Abrams Inc., New York, 2001) p.162
7 Kiyoo Matsuzuki, 'National history of the pearl', lst ed. (Kenseisha Inc., Japan, 2002) p.173
8 D. Doubilet, 'Pearls; from the myths to modem pearl culture', lst ed. (Schoeffel pearl culture, Stuttgart, 1996) p.50
9 Kouji Wada, 'Science of the pearl: formation and grading', 2nd ed. (Publish a newspaper of pearl, Japan, 1999) p.253