中文摘要：

本文用KOH溶液对石英晶体进行腐蚀实验,对石英晶体不同结晶学方向的5个晶面（切面）的腐蚀像进行观察,建立了石英碱腐蚀形貌的立体模型,并与酸（HF）溶液所腐蚀的同样5个面的腐蚀像进行对比。研究发现碱腐蚀与酸腐蚀在柱面{1010}和菱面{1011}、{0111}上有很大不同,在柱切面{1120}、{2110}上有相同之处。但它们都反映各晶面及晶体的对称特点。该研究对揭示矿物晶体在不同酸碱地质环境下腐蚀的特点具有指导意义。

英文摘要：

In this paper,KOH solution was used to take corrosion test on quartz crystal.The etch figures on five crystal faces or sections of quartz crystal and established stereographic model of etch figures was observed.The difference between etch figures formed by HF solution and KOH solution on the same five crystal faces or sections was also analyzed.The prism {1010}and the rhombohedron{1011}、{0111}have different etch figures between HF solution and KOH solution,but the prism section {1120} and {2110} have similar etch figures.All of the etch figures show symmetry characteristics of the crystal.The research has significanse to indicate difference of pH geological environment of mineral crystal.