Quartz is a crystalline mineral consisting mainly of silica. Meanwhile, granite is an igneous rock composed of various minerals, such as feldspar, mica, and quartz. Both can be different colors ...

and minerals and rocks affect landform development and form natural resources such as gold, tin, iron, marble, and granite. Silicates—including quartz, mica, olivine, and precious minerals such ...

What FACTS ABOUT ROCKS do you know? They are abundant on earth, and yet little is known about them. These facts will increase your knowledge of the rocks.