The ultrastructure of pyroxenoid chain silicates. I. Variation of the chain configuration in rhodonite
The ultrastructure of pyroxenoid chain silicates. I. Variation of the chain configuration in rhodonite
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辉石链状硅酸盐的超微结构。
DOI：
10.1107/s0567739480002136
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发表时间：
1980
期刊：
影响因子：
--
通讯作者：
John Meurig Thomas
中科院分区：
文献类型：
--
作者：
D. Jefferson;N. J. Pugh;M. Alario;L. G. Mallinson;G. Millward;John Meurig Thomas
通过高分辨率电子显微镜对硅锰矿（蔷薇辉石）的两个样品进行了研究，一个是天然状态的，另一个是经过热处理的。观察到了平行于(001)和(110)的面缺陷。计算机模拟图像和光学衍射研究证实，在(001)缺陷处，辉锰矿结构的条带插入到母体蔷薇辉石基质中。发现第二种缺陷等同于在硅灰石中观察到的堆垛层错，并讨论了蔷薇辉石和硅灰石结构中这种缺陷之间的相似性和差异性。
Two samples of the silicate mineral rhodonite have been examined, in the natural state and after heat treatment, by high-resolution electron microscopy. Planar faults parallel to (001) and (110) have been observed. Computer-simulated images and optical diffraction studies have confirmed that at (001) faults strips of pyroxmangite structure are inserted into the parent rhodonite matrix. The second type of fault has been found to be equivalent to the stacking faults observed in wollastonite, and similarities and differences between this type of fault in the rhodonite and wollastonite structures are discussed.