Find 161 listings related to Infiniti Dealership in West Lafayette on YP.com. See reviews, photos, directions, phone numbers and more for Infiniti Dealership locations in West Lafayette, IN. Start your search by typing in the business name below. What do you want to find?
Best Answer: Intermediate rocks contain between 53% and 65% silica. They also contain potassium and plagioclase feldspar with a small amount of quartz.est Answer: Intermediate rocks contain between 53% and 65% silica. They also contain potassium and plagioclase feldspar with a small amount of quartz.
The following list gives more information about igneous chemical categories. 1  Felsic rocks are high in silica (65% +). They are usually light-colored. 2  Intermediate rocks have lower silica content (55-65%). They are darker than felsic rocks but lighter than mafic rocks. 3  Mafic rocks have low silica content (45-55%).