典型岩石的宏、微观鉴定实验的开发

基于北京科技大学以金属材料为主的材料科学基础实验课开设现状，在研究型教学示范课程建设中，为提高学生认识矿物材料及应用材料科学基础知识的能力，开发了对火成岩、变质岩和沉积岩的宏、微观鉴定选修实验，完成了选修实验课样品的制备，撰写了实验指导书，进行了典型岩石宏观鉴定、微观组织的偏光分析和扫描电镜下能谱成分的验证。通过新实验的开发锻炼了综合应用课程知识的能力。

Development of experiment on the macroscopic and microscopic identification of typical rocks

The experimental class in our school concerns mainly metallic materials. In order to change this status, we established a selective experiment course named by the macro and micro identification on igneous, metamorphic and sedimentary rocks during the construction of research-oriented teaching course. We prepared rock samples for optic microscopy observation and observed the macro-features under the polarized light microscope and verified different constitutes by energy dispersive spectrum analysis under scanning electron microscope. In addition, we wrote the instruction guideline for experiments for the use of other students. Through this practice, we can improve the cognitive ability on mineral materials and aoolv the basic knowled~,e of materials science to such materials.