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首页> 外文期刊>Journal of structural chemistry >Crystallographic analysis of apatite and tourmaline structure types: Rules of maximum symmetrization and coherent assembly
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Crystallographic analysis of apatite and tourmaline structure types: Rules of maximum symmetrization and coherent assembly

机译:磷灰石和电气石结构类型的晶体分析:最大对称化和连贯组装规则

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Following the maximum symmetrization principle (maximum decrease in the degrees of freedom of atoms in the structure), the results of the crystallographic analysis of structures of the very abundant apatite type (P6(3)/m), rare krasheninnikovite mineral (P6(3)/mcm), and also abundant tourmaline (R3m) are discussed. The configuration of cations defining the structure in the first two minerals is created by a set of "skeletal" planes of the cubic and hexagonal sublattices, whereas tourmaline contains only a cubic sublattice, with a great similarity to the former in the cation framework geometry.
机译:在最大的对称原理(结构中原子自由度的最大值)之后,磷灰石型磷灰石型结构的晶体分析结果(P6(3)/ m),罕见的克拉什尼科维矿矿物质(P6(3 )/ MCM),还讨论了丰富的电气石(R3M)。 定义前两个矿物质中结构的阳离子的配置是由立方体和六边形子组的一组“骨架”平面创建的,而陀螺仪仅包含一间立方体子图案,与前者在阳离子框架几何形状中具有很大的相似性。

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