广东龙川水晶晶体的形貌特征

The Morphological Characteristics of the Crystal from Longchuan County in Guangdong Province

广东龙川水晶晶体形态有柱状、宝塔状(尖锥状)。经扫描电镜显示其大小菱面、柱面上具有丰富的表面微形貌,晶面上的三角形溶蚀坑、四边形溶蚀坑、三角形溶蚀丘、三角锥、三角形生长层、拉长的三角形螺旋生长纹都体现了与结晶方位的一致性。通过对包裹体均一法测温和能谱分析,结合水晶的晶体结构和表面微形貌特征,在一定程度上诠释了环境条件对水晶晶体形态、表面微形貌的影响,从而说明晶体形貌是晶体结构与环境条件共同作用的结果。

Longchuan crystal morphology in Guangdong was classified into columnar and pagoda shapes.There were abundant micro-topographies on the surfaces of size diamonds and cylinders by means of SEM,the triangular and quadrilateral corrosion pits,triangular corrosion hillocks,cones and growth layers,elongated triangular spiral growth stripes on the crystal surface were consistent with the crystal orientations.The inclusions were measured on temperature by the homogenization method and analyzed on energy spectrum,combining with crystal structures and external micro-topographies to explain the effect of environment on the morphology and surface micro-topography to some extent,accordingly it showed crystal morphology was the result of the interaction between crystal structure and environmental conditions.