岩石矿物学杂志2024，Vol.43Issue(4)：931-937,7.DOI:10.20086/j.cnki.yskw.2024.0410
矿物解理/断裂规律与晶面间距的弱相关性及证明
Weak correlation and proof of mineral cleavage/fracture nature with interplanar spacing
摘要
Abstract
The crystal chemical mechanism of mineral cleavage/fracture and its relationship with interplanar spac-ing were quantitatively studied using density functional theory,broken bond theory,and crystal chemistry proper-ties.It was found that the common cleavage/fracture planes of minerals do not always correspond to the crystal planes with the maximum interplanar spacing,showing a weak correlation.The theoretical calculations suggested that the common cleavage/fracture planes of minerals correspond to the crystal planes with the lowest surface ener-gy,and the surface energy is positively correlated with the reticular density and the average broken bond numberτ of the crystal plane atoms.The interplanar spacing is positively correlated with the reticular density,implying that when crystal planes with large interplanar spacing become common cleavage/fracture planes,the surface energy needs to be reduced by decreasing the average fracture bond number τ of the crystal plane atoms.However,the analysis revealed a poor correlation between the interplanar spacing and τ,which indicates that the interplanar spacing is not directly related to the cleavage/fracture patterns of minerals.The results of this study can provide theoretical insights for research on the cleavage/fracture patterns of minerals and surface properties.关键词
晶面间距/矿物解理/断裂/表面能/断裂键参数/弱相关性Key words
interplanar spacing/cleavage/fracture nature/surface energy/broken bond parameters/weak correlation分类
天文与地球科学引用本文复制引用
王纪镇,张佳祺,闫荣禄,陈友良,李甲伟..矿物解理/断裂规律与晶面间距的弱相关性及证明[J].岩石矿物学杂志,2024,43(4):931-937,7.基金项目
陕西省自然科学基础研究计划项目(2021JM-394) Basic Research Plan of Shaanxi Natural Science(2021JM-394) （2021JM-394）
