Final answer:
Silicate minerals are the most common in the Earth's crust, comprising about 90% of its composition, with quartz being one of the most recognizable examples.
Step-by-step explanation:
The most common minerals in the Earth's crust are silicate minerals.
Silicates comprise the largest and most complex class of minerals. Notably, about 90% of the Earth's crust is composed of silicate minerals, which are based on the silicon-oxygen tetrahedron structure. Oxygen and silicon are the two most prevalent elements in the crust, indicating the ubiquity of silicate materials.
Famous examples of silicate minerals include quartz, one of the most recognizable and abundant minerals in the crust. Clearly, silicate minerals dominate the Earth's crust, not just in diversity but also in overall presence, as they are found in a broad array of rock types.