金属不透明矿物按鉴定它们的难易程度来划分,可分为易鉴定的、较难鉴定的和难鉴定的三大类。第一类易鉴定的金属不透明矿物往往利用矿物的外表鉴定特征或再辅以简易化学鉴定方法即可定出矿物名称。例如自然铜,根据其强金属光泽、延展性、低硬度、特征的铜红色(新鲜面颜色)及易风化的表面假色即可定名。又如辉锑矿,根据其金属光泽、铅灰色、低硬度和特征的斜方长柱状结晶习性就能大致鉴定,再滴上氢氧化钾溶 Metal opaque minerals according to identify their degree of difficulty to be divided into easily identified, more difficult to identify and difficult to identify the three categories. The first class of easily identifiable metallic opaque minerals often uses the mineral’s apparent identity or a combination of simple chemical identification methods to determine the name of the mineral. Natural copper, for example, can be named according to its strong metallic luster, ductility, low hardness, characteristic copper red (fresh-faced color), and weather-prone surface false color. Another example is stibnite, according to its metallic luster, lead gray, low hardness and characteristics of the rhombic long columnar crystallization habits can be roughly identified, and then dropping potassium hydroxide solution