论文部分内容阅读
利用透射电子显微镜(TEM)系统观测了黄铁矿片、板状晶体的微结构,发现在水热条件下生成的黄铁矿片、板状晶体具有正方形、矩形等多种形貌。其中,正方形较多,矩形次之,另可见到一些其他不规则形状。黄铁矿片、板状晶生长完好,未见缺陷。经测定多数四边形片状黄铁矿的两组边分别平行(010)和(100),其生长晶面为(001);个别四边形片状黄铁矿的两组边分别平行(010)和(101),其生长晶面为(101),矩形片状黄铁矿长轴生长方向为<001>。在水热条件下黄铁矿以多形貌出现,黄铁矿的片、板状晶体多数是沿(001)面生长的结果,(001)为黄铁矿片、板状晶体的主要二维生长面,并沿<001>方向扩展,构成了二维晶体。
The microstructure of pyrite flakes and plate crystals was observed by transmission electron microscopy (TEM). The pyrite flakes formed under hydrothermal conditions were found to have square and rectangular shapes. Among them, the square is more, followed by the rectangle, and the other can see some other irregular shapes. Pyrite tablets, plate crystal growth intact, no defects. The majority of tetragonal pyrite was determined to be parallel (010) and (100) to each other, and the growth plane was (001). The edges of the individual tetragonal pyrite were parallel (010) and 101). The growth plane is (101). The growth direction of the long axis of the rectangular plate pyrite is <001>. The pyrite appears as a multi-morphology under hydrothermal conditions. Most of the pyrite and plate crystals are the result of the growth along the (001) plane. The (001) is the pyrite and the plateau Growth surface, and along the <001> direction to expand, forming a two-dimensional crystal.