What Are The 3 Most Common Minerals In An Andesite?
What Are The 3 Most Common Minerals In An Andesite? Igneous rock composition chart: This chart shows that andesite is typically composed of plagioclase, amphiboles, and micas; sometimes with minor amounts of pyroxenes, quartz, or orthoclase. What is the most abundant mineral in andesite? Plagioclase and pyroxene are the normal essential minerals and plagioclase is