Quartz

Quartz is a hard, crystalline mineral composed of silicon and oxygen atoms. It’s known for its durability and its resistance to weathering and chemical breakdown. Quartz comes in a variety of colors, including clear, white, pink, purple, brown and gray, and black.

Because of its durability and resistance to weathering, quartz has many uses in civil engineering, construction, road building, and residential projects. 

Landscaping: Quartz rocks can also be used in residential landscaping for decorative purposes, in rock gardens, or as a component of certain types of composite paving.