中文摘要：

矿区成矿围岩经历基性熔岩与火山碎屑岩两次成岩作用，水晶矿的成矿先后经历了3个成矿阶段。不同成矿阶段水晶单形晶面种类、晶体形貌、颜色、包裹体等有明显的不同，根据这些特征可划分水晶矿的成矿阶段与矿物世代。紫色及“三色层”水晶产出在第1成矿阶段的玄武岩气孔中；条带状水晶及乳白色、纯净无色水晶与板状绿帘石产出在第2成矿阶段的玄武岩层间滑动裂隙或晶洞中；第3成矿阶段的火山碎屑岩的气孔或晶洞或裂隙脉中，产出以红色赤铁矿为主，伴有绿帘石与绿纤石、玉髓及玛瑙。扫描电镜研究表明“三色层”水晶中的赤铁矿球粒具三圈层构造，条带状水晶中的赤铁矿管状包裹体是两圈层构造的中空管。水晶流体包裹体均一温度及拉曼光谱研究表明，矿区水晶矿属低温热液（150～190℃）成矿，成矿流体的盐度较低（W（NaCl）=5．7％～13．2％），其中紫晶盐度最高（13．2％），条带状水晶盐度较低（6％）。流体包裹体主要由H2O和SO2及微量的CH4组成。

英文摘要：

In metallogenic mining area there exist three mineralization stages in the basification lava and volcan- iclastic rock of diagenesis. In different mineralization stages rock crystals have different kinds of monomorphy, different development in crystal face, different symmetry of crystals morphology, different color and inclusions. According to the difference of crystals, different mineralization stages and mineralization generations are divid- ed. In No. 1 mineralization stage pyramidal pale purple rock crystal grows in the gas cavity of basalt. In No. 2 mineralization stage there are light-colored, milk white, achromatic color rock crystal and green, prasinous platelike epidote in the druse or lamellar sliding fissure of basalt, presenting symmetric honeycomb from the wall to the center of druse. In No. 3 mineralization stage there is brown cherry hematite in the druse or fissure or gas cavity of basalt, with epidote and lotrite, there are at least three mineralization stages. lastly chalcedony and agate crystallized. In quartz mining area Scanning electron microscope （SEM） indicates that hematite in ＂trichroic＂ rock crystal consists of three-circle layered structure peloids. Tubular inclusion of hematite in bandings of banded rock crystals is found in the two-circle layered structure central-cavity tube. By the analysis of the homogenization temperature of the fluid inclusion and Raman spectrum of the crystals, the rock crystals are formed on the condition of epithermal （ 150 - 190 ℃ ） ore deposit genesis ： low salinity of the ore-forming fluid （w （NaC1） 5.7 % N 13.2% ）, high salinity of amethyst is highest （ 13.2% ） and low salinity of banded rock crystals （6%）. The fluid inclusion consists mainly of H20, SO2 and a small amount of CH4, providing useful guide to study the genesis of rock crystal ore and the variation of ore-forming environment condition.