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首页> 外文期刊>Crystal growth & design >Special vaterite found in freshwater lackluster pearls
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Special vaterite found in freshwater lackluster pearls

机译：在淡水缺乏光泽的珍珠中发现的特殊球ate石

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In recent years, scientists have special interests in biovaterite found in freshwater cultured lackluster pearls in south China. Vaterite is an unstable crystalline form of calcium carbonate and rare in nature. In this work, we first reported that vaterite crystals in freshwater lackluster pearls have a similar hiberarchy to that of nacre with the "brick and mortar" structure. The dimension of a single vaterite tablet is approximate 8 x 2 x 0.4 mu m(3). In half-lackluster pearls, the aragonite-vaterite interface is abrupt, and the boundary is sequential; two different kinds of contact modes between aragonite and vaterite tablets were observed. Furthermore, crystallographic orientation regulation of vaterite tablets was analyzed for the first time. The results show that vaterite tablets are arrayed with the [010] direction perpendicular to the tablet plane; strong [010] texture and relatively weak [101] and [102] texture were obtained in a region from several neighboring tablets to micrometer scale. In addition, the misorientation angles between adjacent tablets mainly concentrate on small angles lower than 10 degrees and have another gather in 60 degrees.
机译：近年来，科学家对在中国南方淡水养殖的淡淡珍珠中发现的生物球ate石特别感兴趣。球ate石是不稳定的碳酸钙晶体形式，自然界中很少见。在这项工作中，我们首先报道淡水淡淡珍珠中的球ate石晶体具有类似珍珠母的“砖和灰浆”结构。单个v石片的尺寸约为8 x 2 x 0.4微米（3）。在半光彩的珍珠中，文石－v石界面突然，边界是连续的。观察到文石与球ate石片之间的两种不同接触方式。此外，首次分析了球ate石片的晶体学取向调控。结果表明，球v石片的排列方向为[010]，垂直于片剂平面;在从几个相邻的片剂到微米级的区域中获得了强[010]质地和相对弱的[101]和[102]质地。另外，相邻片剂之间的取向差角主要集中在小于10度的小角度上，并且另一个聚集在60度上。

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