Silica content material: Igneous rocks might be categorised centered on their silica content material. Rocks with large silica material are named felsic or acidic, when rocks with small silica content material are known as mafic or fundamental. The silica content material impacts the color and composition from the rocks. I https://claytontvvtr.thekatyblog.com/26710087/rumored-buzz-on-types-of-rocks-activities-for-third-grade