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羟氯镁铝石（ｋｏｅｎｅｎｉｔｅ）为典型的异类结构基元层间层矿物．结构以氯化物层（Ｎａ，Ｍｇ）Ｃｌ２和氢氧化物层（Ｍｇ，Ａｌ）（ＯＨ）２沿ｃ方向规则交互构成．以前的研究认为构成羟氯镁铝石的两个亚结构有不同的空间群和晶胞参数．本次以高分辨透射电子显微镜的研究结果表明，羟氯镁铝石在ｃ方向的重复周期为１．０８ｎｍ左右，在ａ方向上没有显示出层失配特点，说明它是一种有序的晶体．对结构基元层层间的静电作用势能的定量计算表明，层间作用力相对较弱，为１０４．９０ｋＪ／ｍｏｌ．
Koenenite is a typical heterogeneous structural elemental interlayer mineral. The structure is composed of a chloride layer (Na, Mg) Cl2 and a hydroxide layer (Mg, Al) (OH) 2 along the c direction. Previous studies suggest that the two sub-structures that make up the mica-boehmite have different spatial groups and unit cell parameters. The results of high-resolution transmission electron microscopy study showed that the mica-alumina in the c direction of the repetition period of about 1.08nm, in a direction did not show the layer mismatch characteristics, indicating that it is an ordered Crystal. The quantitative calculation of the electrostatic potential energy between the structural elementary layers shows that the interaction force between layers is relatively weak, which is 104.90 kJ / mol.