火山岩为高温、淬火、低压、脱气、氧化等条件下的产物,它与侵入岩形成环境不同,因此,火山岩中的矿物也与侵入岩不同.研究这些差异,对火山岩的矿物与岩石鉴定,岩相与成因分析等,都有很大意义.作者初步归纳出火山岩中常见造岩矿物的十个特征(以镜下鉴别特征为主),很不成熟,欢迎指正.一高温性火山岩的形成温度一般为900～1200℃,基性熔岩湖中高达1300℃.因此,火山岩 Volcanic rocks are the products of high temperature, quenching, low pressure, degassing and oxidation, which are different from those of invaded rocks. Therefore, the volcanic rocks are also different from those of intrusive rocks. Studying these differences, Lithofacies and genetic analysis, etc. The author initially summarized 10 characteristics of the common rock-forming minerals in the volcanic rocks (mainly by microscopic identification), which are immature and welcome to correct the formation of a high-temperature volcanic rock The temperature is generally 900 ~ 1200 ℃, basic lava lake up to 1300 ° C. Therefore, volcanic rocks