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.
Especially in the case of higher grade metamorphism, crystals can grow in the rock that are considerably larger than the average grain size in the rock (garnets, staurolite). These large crystals are called porphyroblasts (from Greek blastos, to grow) in analogy to porphyric crystals in igneous rocks. The NAMING OF METAMORPHIC ROCKS: Is done by combining the most abundant minerals and the textural type into a name. E.g. Garnet Hornfels, Quartz-mica Schist.