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最近市场上出现了不少五颜六色的海水有核养殖珍珠,这是广西某公司于2002年开发的一种新技术,利用带有色彩的动植物营养素,在对珍珠贝进行插核手术前,对珍珠核、移植细胞片进行处理,这样获得的有核养殖珍珠因为核的颜色透过薄的珍珠层而呈现出核的颜色,主要有玫瑰红色、翡翠绿色、海水蓝色和银灰色。通过对比研究发现:这类带染色核的养殖珍珠在放大观察下都显示明显的核的平行条带;珍珠表面的瑕疵和裂纹都没有颜色浓集的现象;在反射光下,经放大在孔眼处明显可见颜色很浓的核和其表面的无色珍珠层;在紫外光下观察,它们常有紫外荧光;在分光镜下观察,可见吸收光谱;通过孔眼测试,核的拉曼光谱显示出比表面珍珠层明显强的荧光背景。
Recently appeared on the market a lot of colorful seawater aquaculture pearls, which is a company in Guangxi in 2002 developed a new technology, the use of colored animal and plant nutrients, before the Pearl shellfish for nuclear surgery, the pearl Nuclear and transplanted cell sheets. The nuclear cultured pearl thus obtained shows the color of the nucleus because of the color of the nucleus penetrating the thin nacre. The main colors are rose red, emerald green, seawater blue and silver gray. Through the comparative study, it is found that cultured pearls with dyed nuclei show obvious parallel bands of nuclei under magnified observation. There is no color concentration phenomenon on the surface of pearls. In the reflected light, Visible at the core of the color is very thick and the surface of the colorless nacre; observed under UV light, they often have UV fluorescence; observed under a spectroscopic absorption spectrum can be seen; through the hole test, the Raman spectrum of the nucleus The surface of the pearl layer is obviously stronger than the fluorescent background.